niels bohr institute university of copenhagen Coverlayout: Morten Dam Jørgensen Discovery Center Annual Report 2011

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1 niels bohr institute Coverlayout: Morten Dam Jørgensen university of copenhagen Discovery Center Annual Report 2011

2 Table of Contents The Discovery Center in 2011 The Hunt for New Particles Exploring the Early Universe in a Laboratory The Light from the Early Universe Theoretical Developments at Discovery Discovery People Scientific Associates Discovery Advisory Board Discovery Visitors Discovery Workshops Discovery Publications Discovery Financing External Grants by Discovery Groups in 2011 Discovery Center is included in New Collaboration with CERN ANNUAL REPORT 3

3 THE DISCOVERY CENTER IN has been one of the busiest and most exciting years in particle physics and cosmology we can remember. The many years of preparation was finally brought to their ultimate use in the analysis of the unprecedented amounts of data that are now streaming in. I now invite you to take a closer look at the excitement all this activity has brought about in the Discovery Center in this report. One of our main activities comes from the fact that the Discovery Center participates in the Science Team for the Planck satellite mission. This satellite has been performing even better than planned and the data analysis has as a first step led to a wealth of new astrophysical observations, of immense interest in their own right and also needed to achieve the main goal: To provide, with unprecedented accuracy, the cosmological parameters that tell us how the Universe evolved until now, and how it will evolve into the future. Be prepared for big news from the Discovery Center later in 2012, when these new cosmological data will have been analyzed! Moving from the largest scales in the Universe to the smallest scales ever measured, the Large Hadron Collider (LHC) has also been performing way above expectations. After a long run with protons, the LHC switched to heavy ion beams last November. The Discovery Center is deeply involved in both of these themes of the LHC adventure. Published results have included a first direct observation of jet quenching in heavy ion collisions, many measurements at the few percent level of accuracy for processes predicted by the Standard Model of particle physics, and new strong constraints on physics beyond that. Near the end of the year a huge effort was done to quickly analyze the data pertaining to the search for the Higgs boson. The presentation of significant progress in this search was the target of an immense public interest. The theory group at the Discovery Center has in 2011 attracted a large number of truly outstanding scientists from around the world, almost all of them attracting additional funding. The group started up one big Sapere Aude grant from the Danish Science Research Council, two smaller Sapere Aude Awards, one prestigious EU Marie Curie Fellowship and a Fellowship from the Carlsberg Foundation. Several post-docs also managed to come to the Center on their own funding. Just recently one of the Assistant Professors at the Discovery theory group received a prestigious Lundbeck Junior Group Leader grant. A young post-doc in the Discovery theory group has likewise just received a Young Investigator Grant that will pay for his own salary for three years, allow him to hire his own co-worker for three years, and provide funding for new computer resources. All this additional funding has given rise to an upward spiral where strong scientists that are now attracted to Copenhagen give rise to even more focus and interest in the work done here. The 2011 Niels Bohr Summer Institute was organized by the particle physics theory group, and it attracted a large group of absolutely outstanding scientists, including Nobel prize winner G. t Hooft. Perhaps one the biggest successes of the Discovery Center is its ability to cross-fertilize fields and we are now deeply involved in collaborative efforts that bridge across the disciplines. In the following pages I will highlight some of the most exciting developments in the Center. I hope to share with you the thrill of science, theory confronting data, and discovery. January 2012 Peter H. Hansen Director of the Discovery Center 4 ANNUAL REPORT 5

4 THE HUNT FOR NEW PARTICLES If the Discovery Center had been a winery, then 2011 would without a doubt go down in history as a fantastic year with an excellent bouquet and a strong flavor. For the experimental particle physics group at Discovery, the data set collected in 2011 with the ATLAS experiment has exceeded wildest expectations. In 2010, we recorded fb-1 (corresponding to 70,000 billion proton collisions), and the dream for 2011 was to reach 1.0 fb-1. However, the LHC was to display a hidden potential, and by the 6th of November of 2011 it had delivered an amazing 5.27 fb- 1, which is more than 140 times the size of last year s data. For the remainder of 2011 LHC collided lead ions, which were recorded in both ATLAS and AL- ICE experiments. As should be clear from this report, 2011 has been an extremely active year at the Discovery Center. New results have been produced at a tremendous rate, demanding a heavy workload in the quality control and processing of the data. The results from the analysis of last year s data were published (73 publications in 2011 up to now, mostly in Physics Letters and Physical Review Letters) and also presented at numerous conferences. One of these was the annual meeting in the Danish Physical Society where an entire session was devoted to the Discovery center and another one was our very successful Summer Institute, visited, among others, by Nobel prize winner Gerard t Hooft and the father of the ATLAS experiment, Peter Jenni. At the annual Moriond conference in March, it was shown that the 2010 LHC data could already match the data collected over many years at the American Tevatron Collider in terms of exclusion limits on various hypothetical particles. One of the more striking results presented at the Moriond meeting was based on an analysis performed at the Discovery Center. It is described in some detail below. Other analyses with very significant contributions from the Discovery Center was the search for the Higgs boson, both the one of the Standard Model and the ones implied by supersymmetry. Essential here was the study of background processes predicted by the Standard Model. By now these efforts have lead to important progress in the search, the result of which was presented with much attention from the press and the general public. In the figure below we show a candidate Higgs decay into two Z bosons, each subsequently going to two muons of opposite electric charge (red lines). On the outreach front, one remarkable achievement was the design and construction of a model of the ATLAS detector made with 10,000 LEGO bricks. The construction started as a public event during the Copenhagen Culture Night and is being mentioned in the science news around the world. In addition, in 2011 we produced a film aimed at the public: cern_powerforskning/video/ as well as countless public talks, many of them on video. The experimental particle physics group at the Discovery Center had three Ph.D. defenses and six master thesis defenses during This is beyond doubt the largest number ever for the group. In the late summer and fall of 2011 we hosted two Ph.D. schools and several workshops including one on Heavy Ion physics gathering some of the most prominent people in the field. 6 ANNUAL REPORT 7

5 Stable Massive Particle Searches at Discovery The Discovery-ATLAS group plays a central role in the search for stable massive particles (SMPs) and has extended the mass limits for their possible existence significantly. All known heavy particles decay very rapidly, and all we see in our detectors are the debris from these decays. However, many of the theories that extend the Standard Model predict (meta-)stable particles that are able to penetrate the ATLAS detector, leaving unusual signatures in the sensors. The main difficulty in the search for SMP s is the fact that the detector is designed with the detection of normal particles in mind and not for particles which, like the SMP s, may travel much slower than light and may change their electric charge along their way. Therefore the signals from the sub-detectors had to be combined in a novel way in order to retain sensitivity in all cases. Another difficulty arises from the background which comes from the tails of detector signals and is therefore not necessarily correctly reproduced by simulation. Therefore the background contribution has to be determined from the data. All of the above mentioned difficulties were overcome by the Discovery team in close collaboration with the group in Stockholm, and new lower limits for the possible masses of new stable hadrons were published which greatly extended previous limits as seen in the accompanying figure. With the full set of data from 2011, the limits are expected to be pushed out beyond 1 TeV and the range of covered lifetimes to be similarly extended. 8 ANNUAL REPORT 9

6 EXPLORING THE EARLY UNIVERSE IN A LABORATORY The LHC ended the year of 2010 with a month of colliding lead ions. The collisions of lead-ions produced spectacular displays of what the early universe looked like. The data has been rapidly analyzed with results shown at the Quark Matter Conference in May Particle production in lead nucleus collisions The Discovery heavy-ion group has analyzed the data from these collisions and evaluated some of the global properties of the mini-early universes arising. The Copenhagen contribution to the ALICE experiment of the Forward Multiplicity Detector allowed for the measurement of charged particles over a broad angular range. Our analysis showed that the lead collisions produced up to particles. This information allows one to estimate that the energy density in which the particles were created is approximately 30 times the energy density of a proton and 16 times the energy density required to form the state of matter that existed 1 µs after the big bang. This state of matter is termed the quark-gluon plasma. Further studies of the spatial distribution of particles have been carried out in the azimuthal direction. Due to the way lead ions collide, the density of particles varies in different directions. In a strongly interacting medium, like the quark-gluon plasma of the early universe this would result in a pressure gradient leading to a preferential direction for particles to emerge from the collision. We managed to find a significant anisotropy that can be described using a hydrodynamic model of an equilibrium state of matter. Such models have been used to extract properties such as the viscosity of the early universe. Interdisciplinary Projects The Discovery center profits from its collaboration between heavy-ion, high-energy, theoretical, and cosmological physics to develop new techniques to analyze data. The analysis of the cosmic microwave Particles emerging from a collision of two lead ions as seen by the ALICE detector. The spatial distribution of particles produced in lead collisions ranging from head on (0-5%) to more peripheral (50-60%) collisions. Elliptic flow in heavy ion collisions manifests itself as a characteristic pattern in the typical representation used for analyzing the cosmic microwave background (left). It can be extracted as a single mode in the decomposition into spherical harmonics (right), here the Y22 component. By imposing particular selection criteria on the spherical harmonics, one can exclude or enhance particular symmetries of the distribution. 10 ANNUAL REPORT 11

7 background uses projections onto spherical harmonic modes to characterize the data and this technique has now been used for the first time as an alternate method to study the anisotropy of the distribution of particles emerging from a heavy-ion collision. The goal is to use this complex framework to identify better characteristics of the quark-gluon plasma. Another key question in the collision of heavy-ions is whether a medium is created that quenches high momentum quarks and gluons in the sense that they radiate their energy away as they traverse it. This has been confirmed. Very high momentum quarks and gluons identified with the ATLAS detector were observed to distribute their energy over a much broader angular extent in heavy-ion collisions as compared with proton-proton collisions. The same phenomenon can be observed looking at the relative number of high momentum particles created in lead-lead col- lisions and proton-proton collisions. Using the AL- ICE detector, we have seen that the number of high momentum particles is suppressed in heavy-ion collisions. The two detectors are thus complementing each other in the study of the quark-gluon plasma. The amount of data taken in 2011 is more than 10 times what was taken in The new data will bring the opportunity for much more detailed studies of the quark-gluon plasma giving novel contributions to the understanding of the early universe. The energy loss of particles in a quark-gluon plasma seen in two different ways. Left: The ratio of particles in lead-lead collisions relative to proton-proton collisions (RAA) as a function of momentum as measured with the ALICE detector clearly showing a suppression around 5 GeV. Right: The energy of a jet as measured using the ATLAS detector where the energy of the away side jet is nearly completely dispersed over a wide angular range. 12 ANNUAL REPORT 13

8 THE LIGHT FROM THE EARLY UNIVERSE The physics of the Cosmic Microwave background (CMB) is the gold mine for the modern cosmology in which theoretical predictions can be confronted with observations. This area of cosmology provides a unique opportunity to obtain information about very early stages of the cosmological expansion, about properties of the space and time and about the birth of the Universe. During the last two years there has been an enormous growth in observational cosmology and in particular in the physics of the CMB. The Discovery Center has started up at just the right time to profit from the Planck satellite data as they keep flowing in. In this connection it has been crucial that the group at the Niels Bohr Institute already constituted the theory part of the Danish Planck Team. Evidently, the combination of the Planck space mission data and the particle physics data from the LHC may solve many of the most urgent questions about dark matter in the Universe. Recently, the Discovery Center team seems to have identified an unusual anomaly of the CMB power spectrum, named parity asymmetry. It reveals itself in a dominance of asymmetric (odd) modes of the power spectrum over symmetric one. This parity asymmetry could possibly have a primordial origin, connected to fundamental properties of the space and time, or it can be just the result of contamination of the CMB power by new foregrounds, residuals of the point source subtraction. It could even by an artifact of systematics. In all cases, this new anomaly needs additional investigation. The Discovery team is presently pursuing this based on the recently released data, and will continue to investigate it in the future based on the publicly available Planck data. The work done in Copenhagen has prompted the Planck Science team has set up a new working group of the Planck project under the title: Fundamental physics with Planck. It will be devoted to an investigation of potential parity, CPT and Lorentz violation in the CMB data. The Discovery team will contribute to that project through an analysis of the statistical properties of the Planck data, such as Random walks in phase space, Directional statistics and CMB symmetries. In broader sense, the activities of the Planck group at the Discovery center has been devoted to the following topics in 2011: Classification of symmetries of the CMB. Parity asymmetry The CMB signal on the sky can be decomposed into a symmetric and anti-symmetric part under a parity inversion. Given the standard cosmological model, we do not expect a preference for a particular parity in CMB sky. Contrary to the expectation of the standard model, we have found indications of a statistically significant odd-parity preference at the largest scales. We have investigated its possible origins and ruled out various non-cosmological causes. The cleaning of the CMB data with respects to the galactic foregrounds poses a particularly significant challenge. By taking advantage of the fact that the galactic foregrounds Figure 1: Classification of the symmetries of the Cosmic Microwave Background with respect to the Galactic Center. have a remarkable symmetry with respect to their antipodal points and with respect to the galactic plane, and that the CMB show none of these symmetries, one can identify several peculiar multipoles. These multipoles follows symmetries related to the galactic plane (see Fig.1), and in particular, we have identified the WMAP octupole as very symmetric, which might shed new light on the famous alignment between quadrupole and octupole. Figure 2: Auto-correlation function for the WMAP7 temperature signal. One can see the lack of correlations with respect to the theoretical curve for θ < 30 o, as for θ > 60o. 14 ANNUAL REPORT 15

9 Parity test and the temperature auto-correlations In the COBE and WMAP data, there is intriguing lack of the large-angle correlation. Noting the equivalence between CMB angular power spectrum and angular correlation, we have investigated the association between the WMAP large-angle correlation anomalies and the odd-parity preference in the WMAP power spectrum. We have found that the odd-parity preference at low multipoles is the phenomenological origin of the large-angle correlation anomalies. Recently, cold and large dust grains in the outer part of solar system were suggested for the underlying origin of various CMB anomalies. We investigated the Edgeworth Kuiper Belt Objects, in particular, and found it indeed may produce some anomalies. Random walk in phase space The Cosmic Microwave Background can be decomposed into ordinary spherical harmonics multiplied by complex coefficients of decomposition. The simplest scenario of inflation predicts that the phases of these decomposition coefficients should be distributed randomly, without any preference for even or odd multipoles. This prediction has been analyzed by performing a random walk test for the phases of the decomposition coefficients (see Fig.3). Our results have shown, that there are discrepancies between the phases of the even and the odd multipoles, in contradiction to the prediction from theory. This ties in well with the our work on parity asymmetry. The CMB data surely contain some level of contamination from the foreground. Understanding uch systematic effects and the associated identification of the affected multipoles is paramount to accurately measure cosmological parameters. A directional statistics test to measure the smoothness of the CMB power spectrum by comparing the amplitude at one multipole with its nearest or next-nearest neighbors were developed by the Discovery team. Large deviations compared to its neighbors can indicate whether the multipole in question is anomalous or not. Upon comparison with predictions from theory, and after several thousand simulations, many ranges of anomalous multipoles were identified by our group using the directional statistics. Figure 3: Separation of even (black) and odd (red) phases of the CMB as an illustration of the parity asymmetry. Figure 4: Reconstructed amplitude of v2 elliptic flow (vertical axis) versus input flow (horizontal axis). Figure 5: The PLANCK sky map (left) and XMM Newton image of the PLCK G cluster of galaxies. 16 ANNUAL REPORT 17

10 CMB tools for analyzing of LHC Heavy Ion collision In cooperation with the ALICE group in the Discovery Center it has been investigated whether the statistical tools of the CMB sky may give an entirely new and alternative way of analyzing heavy ion collisions at the LHC. In Fig.4 we show the result of reconstruction of elliptic flow versus input data from a single event of an event generator for the ALICE experiment. This approach has proven to be quite successful, and the project is now continuing in several new directions. First release of Planck data The Planck observations of the radio sky in combination with X-ray data by the XMM Newton open a new window for detection of new clusters of galaxies with corresponding redshifts around z= In Fig.5 we show the result of reconstruction of the PLCK G cluster of galaxies at 5-sigma threshold by the Planck and XMM Newton data. This observation illustrates the new way for systematic study of population evolution in the exponential tail of the mass function. Numerous analogous projects related to large-distance astrophysics are currently being pursued by the Planck group at the Discovery Center. Figure 6: The PLANCK sky maps of the Perseus molecular cloud. Figure 7: Spectrum of dust emission in the Perseus molecular cloud. The spinning dust at 17σ corresponds to the magenta line. 18 ANNUAL REPORT 19

11 THEORETICAL DEVELOPMENTS AT DISCOVERY The Discovery theory group has been rapidly growing in size over the past 12 months has seen the arrival of a new assistant professor, Alberto Guffanti, working in the fields of Parton Distribution Functions and precision QCD. Three post-docs have started this Autumn, Guido Macorini, Valery Yundin and Yang Zhang, joining PhD Students Hjalte Frellesvig who began in January and Rijun Huang. We continue to support a large number of Masters students whose projects cover a wide range of topics from mathematical properties of scattering amplitudes to new models for neutrino masses. We are also pleased to congratulate Emil Bjerrum- Bohr on his Junior Group Leader grant from the Lundbeck Foundation. In the coming years this will open up three new post-doc positions and a new PhD studentship working on amplitude computations for the LHC. The group meets regularly for the amplitude journal club and has begun a series of colloquia attracting world class speakers. We also are keen to take part in public out- reach projects, with members giving regular lectures for the Folke Universitet. Anders Tranberg and Poul Henrik Damgaard contributed an introduction to Einstein s theories of relativity for DR s Danskernes Akademie television series. Precision QCD Predictions While the LHC experiments have been busy gathering data, the Discovery theory group has been working intensely to make accurate predictions for the enormous Standard Model background dominated by Quantum Chromo-Dynamics (QCD). Even at LHC energies, the large size of the QCD coupling constant means that the standard perturbative approach to cross-section predictions at collider physics struggles to achieve the desired precision. The computations in perturbative quantum field theory have always pushed the boundaries of our technology. The sheer size of the expressions has been the bottleneck in making quantitative predictions for hadronic collisions. Modern techniques, inspired by string theories and more mathematical super-symmetric constructions, have begun to offer a general solution to this problem. Experts at the NBI have been working hard on investigating both future improvements to the methods, and writing computer The 2011 Copenhagen Conference on Strings, Gauge Theory and the LHC codes that can provide these results directly to the experimentalists. As well as the obvious application, testing the Standard Model to new limits, these highly complicated final states form a large background to signals of new physics. Further phenomenological studies and analysis will hope improve the on-going searches and maximize the discovery potential. NBI Summer Institute A highlight of 2011 s events was undoubtedly the NBI Summer Institute, co-organized with the Niels Bohr International Academy and the High Energy Theory group of the NBI. For the last two weeks of August over 50 scientists from around the world gathered to discuss Strings, Gauge Theory and the LHC. Distinguished guests, including Nima Arkani- Hamed, Nobel Prize winner Gerard t Hooft and Lu- 20 ANNUAL REPORT 21

12 casian Professor Michael Green, gave a wide variety of talks on modern aspects of theoretical physics. With the LHC standing out at the forefront of current advances we were delighted to have Peter Jenni, former ATLAS spokesperson, overview the latest results. In addition, there was a rather important matter to resolve, since ten years ago at a similar meeting a wager on whether super-symmetry would be discovered by 2010 had been made. Many of the original participants had returned and concerns as to whether technical problems with the experiments had unfairly influenced the outcome were raised. Therefore, in order to be completely fair, the date of the wager was extended until The list of participants on the wager makes rather interesting reading and we are looking forward to many of them returning to settle the matter once and for all in five years time! The Wager on the discovery of supersymmetry: Many distinguished guests discussed the possibilities for physics beyond Standard Model at this year s Summer Institute. 22 ANNUAL REPORT 23

13 DISCOVERY PEOPLE SCIENTIFIC ASSOCIATES DISCOVERY ADVISORY BOARD Scientific Staff Alberto Guffanti Anders Tranberg Björn Stefan Nilsson Børge Svane Nielsen Christian Holm Christensen Donal Francis O Connell Esben Bryndt Klinkby Frederik Orrelana Guido Marcorini Hans Bøggild Ian Bearden Jaiseung Kim Jens Jørgen Gaardhøje Johan Lundqvist John Renner Hansen Jørgen Beck Hansen Jørn Dines Hansen Kim Splittorf Kristjan Gulbrandsen Marger Simonyan Mogens Dam Nele Maria Philomena Boelaert Niels Emil J. Bjerrum-Bohr Pavel Naselsky Per Rex Christensen Peter Henrik Hansen Poul Henrik Damgaard Sascha Mehlhase Simon David Badger Stefania Xella Troels C. Petersen Yang Zhang Wen Zhao PhD students Alexander Hansen Almut Pingel Ask Emil Løvschall-Jensen Carsten Søgaaard Casper Nygaard Hans Hjersing Dalsgaard Hjalte Frellesvig Kristian Anders Gregersen Lotte Ansgaard Thomsen Martin A. Kirstejn Hansen Morten Dam Jørgensen Peter Kadlecik Peter Rosendahl Pavel Jez Rijun Huang Simon J. Franz Heisterkamp Sune Jakobsen Thomas Søndergaard Master students Alexander Karlberg Anne Mette Frejsel Asger Ipsen Bastian Poulsen Bjørn Peter Sørensen Christian Bierlich Christian Caeser Christian Holm Christensen Christine Hartmann Christine Overgaard Rasmussen Gorm Galster Ingrid Deigaard Joachim Sandroos Lars Egholm Pedersen Mads Søgaard Maria Hoffmann Mitzio Spatafora Andersen Rasmus Normann Larsen Silvia Arghir Song Chen Amanda Cooper-Sarkar Anupan Mazumdar Bo Feng, Zhejiang University Else Lytken, Lund University Guido Altarelli Ian Hincliffe Jurgen Schukraft Katri Huitu, University of Helsinki Leif Lönnblad, Lund University Lung-Yih Chang, Academia Sinica, Taiwan Maxim Perelstein, Cornell University Oleg Verkhodanov Peter Coles Pierre Vanhove Raju Venugopalan Richard Ball Stefano Forte Urs Wiedemann Zvi Bern Andrei Linde, Stanford University Chris Quigg, Fermilab Jurgen Schukraft, CERN Nick Ellis, CERN 24 ANNUAL REPORT 25

14 DISCOVERY VISITORS Jamie Nagle, University of Colorado at Boulder, USA, Jan 2011 Darren Forde, CERN, Switzerland, Mar 2011 Serreau, Observatoire de Paris, France, Mar 2011 Mona Frommert, Geneva Cosmology Group, Switzerland, Mar 2011 John Donoghue, Apr 2011 Eleanor Dobson, Apr 2011 Benedikt Biedermann, Fritz Haber Institute, Berlin, Germany, Apr-May 2011 Cristina Carloganu, CNRS, France, Apr-may 2011 Lance Dixon, Stanford University, USA, May 2011 Suvrat Raju, University of Allahabad, India, May 2011 Peter Coles, Cardiff University, UK, June 2011 Richard Ball, University of Edinburgh, UK, July 2011 Tony Zee, University of California, Santa Barbara, USA, Aug 2011 Diana Vaman, University of Virginia, USA, Aug 2011 Ruth Britto, Saclay, France, Aug 2011 P. VanHove, Paris, France, Aug-Sep 2011 Henrik Johansson, Paris, France, Aug-Sep 2011 Chris Quigg, Fermilab, USA, Sep 2011 Thomas M. Konstandin, CERN, Switzerland, Sep 2011 M. Perelstein, Cornell University, USA, Sep-Oct 2011 Benjamin Grinstein, University of California in San Diego, USA, Oct 2011 Marco Cirelli, CERN, Switzerland, Oct 2011 Dmitry Gorbunov, Moscow, Russia, Oct 2011 Harald Ita, UCLA, USA, Oct 2011 Hidenori Fukaya, Osaka University, Oct 2011 Urs Heller, the American Physical Society, USA, Oct-Nov 2011 Leif Lönnblad, Lund University, Sweden, Nov 2011 Jan Fiete Grosse-Oetringhaus, CERN, Switzerland, Nov 2011 Urs Wiedemann, CERN, Switzerland, Nov 2011 Wolfgang Kuehn, University of Giessen, NL, Nov 2011 Raju Venugopalan, Brookhaven National Laboratory, USA, Nov 2011 Raimond Snellings, Utrecht University, NL, Nov 2011 Edward Shuryak, Stony Brook, USA, Nov 2011 Robert Pisarski, Brookhaven National Laboratory, USA, Nov 2011 James Nagle, University of Colorado at Boulder, USA, Nov 2011 Stefan Floerchinger, CERN, Switzerland, Nov 2011 Richard Ball, University of Edinburgh, UK, Nov-Dec 2011 Igor Novikov, Lebedev Physical Institute, Moscow, Russia, Nov 2011 John Mark Russel, Oxford University, UK, Nov 2011 Song He, University of Berlin, Germany, Nov-Dec 2011 Josh Cogan from SLAC, USA, Dec 2011 Christian Ohm, Stockholm University, Sweden, Dec 2011 Kari Enqvist, University of Helsinki, Finland, Dec 2011 Louis Helary, Université de Savoie, France, Dec 2011 Lung-Yih Chiang, Academia Sinica, Taiwan, Dec ANNUAL REPORT 27

15 DISCOVERY WORKSHOPS DISCOVERY PUBLICATIONS Nordic Winter School on Cosmology and Particle Physics, Jan 2-7, 2011 Workshop on Cosmology and astroparticle physics from the LHC to PLANCK, Jun 7-9, 2011 Niels Bohr Summer Institute on Strings, Gauge Theory and the LHC,Aug 22 Sept. 2, 2011 PhD School on Particle Physics Phenomenology, Oct 3-7, 2011 Workshop on Heavy Ion: Experiments confront Theory, Nov 7-9, 2011 PhD School on Advanced Methods in Statistical Data Analysis, Nov 14-18, 2011 B. Abelev et al., ALICE Collaboration, Light vector meson production in pp collisions at sqrt(s) = 7 TeV. [arxiv: [hep-ex]]. P. M. Saffin, A. Tranberg, Dynamical simulations of electroweak baryogenesis with fermions, [arxiv: [hep-ph]]. B. Abelev et al.,the ALICE Collaboration, polarization in pp collisions at sqrt(s)=7 TeV, [arxiv: [hep-ex]]. T. Brauner, O. Taanila, A. Tranberg, A. Vuorinen, Temperature Dependence of Standard Model CP Violation, [arxiv: [hep-ph]]. P. H. Damgaard, U. M. Heller, K. Splittorff, Finite-Volume Scaling of the Wilson- Dirac Operator Spectrum, [arxiv: [hep-lat]]. R. D. Ball, V. Bertone, L. Del Debbio, S. Forte, A. Guffanti, J. I. Latorre, S. Lionetti, J. Rojo et al., Precision NNLO determination of αs(mz) using an unbiased global parton set, [arxiv: [hep-ph]]. C. Hartmann, The Frobenius group T13 and the canonical see-saw mechanism applied to neutrino mixing [arxiv: [hep-ph]]. P. Naselsky. W. Zhao. J. Kim, S. Chen, Is the CMD asymmetry due to the kinematic dipole, [arxiv: [astro-ph]]. R. D. Ball, V. Bertone, F. Cerutti, L. Del Debbio, S. Forte, A. Guffanti, N. P. Hart- land, J. I. Latorre et al., Reweighting and Unweighting of Parton Distributions and the LHC W lepton asymmetry data, Nucl. Phys. B 855 (2012) 608 [arxiv: [hep-ph]]. R.D.Ball et al. [The NNPDF Collaboration], Unbiased global determination of parton distributions and their uncertainties at NNLO and at LO, Nucl. Phys. B 855 (2012) [arxiv: [hep-ph]]. 28 ANNUAL REPORT 29

16 O. J. C. Dias, R. Monteiro, J. E. Santos, Ultraspinning instability: the missing link, JHEP 1108 (2011) 139. [arxiv: [hep-th]]. Planck Early Results: Origin of the submm excess dust emission in the Magellanic Clouds, Planck Collaboration: P.A.R. Ade, P. Naselsky, P.R. Christensen et al., arxiv: Astron. and Astrophys. in press, Spec. Edition (2011). Planck Early Results: The Planck View of Nearby Galaxies, Planck Collaboration: P.A.R. Ade, P. R.Christensen et al., arxiv: , Astron. and Astrophys. in press, Spec. Edition (2011). Planck Early Results: Statistical properties of extragalactic radio sources in the Planck Early Release Compact Source Catalogue, Planck Collaboration: P.A.R. Ade, P. Naselsky, P.R. Christensen et al., [arxiv: [astro-ph]], Astron. and Astrophys. in press, Spec. Edition (2011). Planck Early Results: Statistical analysis of Sunyaev-Zeldovich scaling relations for X-ray galaxy clusters, Planck Collaboration: N. Aghanim, P. Naselsky, P.R. Christensen et al. arxiv: , Astron. and Astrophys. in press, Spec. Edition (2011). Planck Early Results: Statistical analysis of Sunyaev-Zeldovich scaling relations for X-ray galaxy clusters, Planck Collaboration: N. Aghanim, P. Naselsky, P.R. Christensen et al. arxiv: , Astron. and Astrophys. in press, Spec. Edition (2011). Planck Early Results. VII. The Early Release Compact Source Catalog, Planck Collaboration: P.A.R. Ade, P. Naselsky, P.R. Christensen et al., arxiv: , Astron. and Astrophys. in press, Spec. Edition (2011). Planck Early Results: Thermal dust in Nearby Molecular Clouds, Planck Collaboration: A. Abergel, P. Naselsky, P.R. Christensen et al., arxiv: , Astron. and Astrophys. in press, Spec. Edition (2011). Planck Early Results XXIV: Dust in the diffuse interstellar medium and the Galactic halo, Planck Collaboration: A. Abergel, P. Naselsky, P.R. Christensen et al., arxiv: , Astron. and Astrophys. in press, Spec. Edition (2011). Planck Early Results: The Galactic Cold Core Population revealed by the first all-sky survey, Planck Collaboration: P.A.R. Ade, P. Naselsky, P.R. Christensen et al., arxiv: , Astron. and Astrophys. in press, Spec. Edition (2011). Planck Early Results: The submillimetre properties of a sample of Galactic cold clumps, Planck Collaboration: P.A.R. Ade, P. Naselsky, P.R. Christensen et al., arxiv: , Astron. and Astrophys. in press, Spec. Edition (2011). Planck Early Results 21: Properties of the interstellar medium in the Galactic Plane, Planck Collaboration: A. Abergel, P. Naselsky, P.R. Christensen et al., arxiv: , Astron. and Astrophys. in press, Spec. Edition (2011). Planck Early Results XX: New Light on Anomalous Microwave Emission from Spinning Dust Grains, Planck Collaboration: P.A.R. Ade, P. Naselsky, P.R. Christensen et al., arxiv: , Astron. and Astrophys. in press, Spec. Edition (2011). Planck Early Results: All sky temperature and dust optical depth from Planck and IRAS: Constraints on the dark gas in our galaxy, Planck Collopen office reove numberingaboration: P.A.R. Ade, P. Naselsky, P.R. Christensen et al., arxiv: , Astron. and Astrophys. in press, Spec. Edition (2011). Planck Early Results XVIII: The power spectrum of cosmic infrared background anisotropies, Planck Collaboration: P.A.R. Ade, P. Naselsky, P.R. Christensen et al., arxiv: , Astron. and Astrophys. in press, Spec. Edition (2011). Planck early results: Cluster Sunyaev-Zeldovich optical scaling relations, Planck Collaboration: N. Aghanim, P. Naselsky, P.R. Christensen et al.arxiv: , Astron. and Astrophys. in press, Spec. Edition (2011). Planck Early Results XI: Calibration of the local galaxy cluster Sunyaev-Zeldovich scaling relations, Planck Collaboration: P.A.R. Ade, P. Naselsky, P. R. Christensen et al., arxiv: , Astron. and Astrophys. in press, Spec. Edition (2011). Planck early results. IX. XMM-Newton follow-up for validation of Planck cluster candidates, Planck Collaboration: N. Aghanim, P. Naselsky, P.R. Christensen et al., arxiv: , Astron. and Astrophys. in press, Spec. Edition (2011). Planck Early Results VIII: The all-sky Early Sunyaev-Zeldovich cluster sample, Planck Collaboration: P.A.R. Ade, P. Naselsky, P.R. Christensen et al., arxiv: , Astron. and Astrophys. in press, Spec. Edition (2011). Planck Early Results: The thermal performance of Planck, Planck Collaboration: P.A.R. Ade, P. Naselsky, P.R. Christensen et al., arxiv: , Astron. and Astrophys. in press, Spec. Edition (2011). 30 ANNUAL REPORT 31

17 Planck Early Results: The Planck mission, Planck Collaboration: P.A.R. Ade, P. Naselsky, P.R. Christensen et al., arxiv: , Astron. and Astrophys. in press, Spec. Edition (2011). Planck Early Results: ERCSC Validation and Extreme Radio Sources, Planck Collaboration: P.A.R. Ade, P. Naselsky, P.R. Christensen et al., arxiv: , Astron. and Astrophys. in press, Spec. Edition (2011). Planck Early Results XXVI: Detection with Planck and confirmation by XMM-Newton of PLCK G , an exceptionally X-ray luminous and massive galaxy cluster at z~1. Planck Collaboration: N. Aghanim, P. Naselsky, P.R. Christensen et al., arxiv: , Astron. and Astrophys. in press, Spec. Edition (2011). C. Hartmann, A. Zee, Neutrino Mixing and the Frobenius Group T13, Nucl. Phys.B853: , [arxiv: [hep-ph]]. T. Sondergaard, Perturbative Gravity and Gauge Theory Relations A Review, accepted for publication in Adv. High Energy Phys. [arxiv: [hep-th]]. P. M. Saffin, A. Tranberg, Real-time Fermions for Baryogenesis Simulations, JHEP 1107 (2011) 066. [arxiv: [hep-ph]]. P. Naselsky, M. Hansen and J. Kim, Symmetry of the CMB sky as a new test of its statistical isotropy. Non Cosmological Octupole? JCAP, 9, 12, (2011). [arxiv: [astro-ph]]. K. Aamodt et al.,alice Collaboration, Higher harmonic anisotropic flow measurements of charged particles in Pb-Pb collisions at sqrt(s_{(nn)}) = 2.76 TeV, Phys. Rev. Lett. 107 (2011) [arxiv: [nucl-ex]]. R. Monteiro, D. O Connell, The Kinematic Algebra From the Self-Dual Sector, JHEP 1107 (2011) 007. [arxiv: [hep-th]]. K. Aamodt et al., ALICE Collaboration, Rapidity and transverse momentum dependence of inclusive J/psi production in pp collisions at sqrt(s) = 7 TeV, Phys. Lett. B 704 (2011) 442. [arxiv: [hep-ex]]. ATLAS Collaboration, Measurement of the differential cross-sections of inclusive, prompt and non-prompt J/ psi production in proton-proton collisions at sqrt(s) = 7 TeV. (Aad, G. et al.) Nucl.Phys.B850: , [arxiv: ] ATLAS Collaboration, The AFP Project. ( Staszewski, R. et al.) Acta Phys.Polon.B42: ,2011. [arxiv: ] ATLAS Collaboration, Search for high mass dilepton resonances in pp collisions at \sqrt{s}=7 TeV with the ATLAS experiment. (Aad, G. et al.) Phys.Lett.B700: , [arxiv: ] ATLAS Collaboration, Search for supersymmetric particles in events with lepton pairs and large missing transverse momentum in \sqrt{s}=7 TeV proton-proton collisions with the ATLAS experiment. (Aad, G. et al.) Eur.Phys.J.C71:1682, [arxiv: ] ATLAS Collaboration, Search for an excess of events with an identical flavour lepton pair and significant missing transverse momentum in sqrt{s} = 7 TeV proton-proton collisions with the(aad, G. et al.) Eur.Phys.J.C71:1647, [arxiv: ] N. E. J. Bjerrum-Bohr, P. H. Damgaard, H. Johansson, T. Sondergaard, Monodromy like Relations for Finite Loop Amplitudes, JHEP 1105 (2011) 039. [arxiv: [hep-th]]. Hansen, A.M. Frejsel, J. Kim, P. Naselsky and F. Nesti, Pearson s random walk in the space of the CMB phases: Evidence for parity asymmetry. Phys. Rev. D, 83, (2011). [arxiv: [astro-ph]]. ATLAS Collaboration, Search for supersymmetry in pp collisions at sqrt{s} = 7TeV in final states with missing transverse momentum and b-jets. (Aad, G. et al.) Phys.Lett.B701: , [arxiv: ]. ATLAS Collaboration, Search for New Physics in Dijet Mass and Angular Distributions in pp Collisions at \sqrt{s} = 7 TeV Measured with the ATLAS Detector. (Aad, G. et al.) New J.Phys.13:053044, [arxiv: ]. ATLAS Collaboration, Measurement of the Muon Charge Asymmetry from W Bosons Produced in pp Collisions at \sqrt{s} = 7 TeV with the ATLAS detector. (Aad, G. et al.) Phys.Lett.B701:31-49, [arxiv: ]. ATLAS Collaboration Search for stable hadronising squarks and gluinos with the ATLAS experiment at the LHC. (Aad, G. et al.) Phys.Lett.B701:1-19, [arxiv: ]. ATLAS Collaboration, Measurements of underlying-event properties using neutral and charged particles in pp collisions at 900 GeV and 7 TeV with the ATLAS detector at the LHC. (Aad, G. et al.) Eur.Phys.J.C71:1636, [arxiv: ]. ATLAS Collaboration, Search for high-mass states with one lepton plus missing transverse momentum in proton-proton collisions at \sqrt{s} = 7 TeV with the ATLAS detector. (Aad, G. et al.) Phys.Lett. B701:50-69, [arxiv: ]. 32 ANNUAL REPORT 33

18 ATLAS Collaboration, Search for squarks and gluinos using final states with jets and missing transverse momentum with the ATLAS detector in sqrt(s) = 7 TeV proton-proton collisions. (da Costa, J. B. G. et al.) Phys.Lett.B701: , [arxiv: ]. ATLAS Collaboration, Measurement of Dijet Azimuthal Decorrelations in pp Collisions at sqrt(s)=7 TeV. (da Costa, J. B. G. et al.) Phys. Rev. Lett.106:172002, [arxiv: ] ATLAS Collaboration, Search for supersymmetry using final states with one lepton, jets, and missing transverse momentum with the ATLAS detector in sqrt{s} = 7 TeV pp. (Aad, G. et al.) Phys.Rev. Lett.106:131802, [arxiv: ]. P. H. Damgaard, Chiral Random Matrix Theory and Chiral Perturbation Theory, J. Phys. Conf. Ser. 287 (2011) [arxiv: [hep-ph]]. J. L. Nagle, I. G. Bearden and W. A. Zajc, Quark-Gluon Plasma at RHIC and the LHC: Perfect Fluid too Perfect?, New J. Phys. 13 (2011) [arxiv: [nucl-th]]. ATLAS Collaboration, Search for Massive Long-lived Highly Ionising Particles with the ATLAS Detector at the LHC. (Aad, G. et al.) Phys.Lett.B698: , [arxiv: ]. S. Badger, R. Sattler, V. Yundin, One-Loop Helicity Amplitudes for tt Production at Hadron Colliders, Phys. Rev. D83 (2011) [arxiv: [hep-ph]]. N. E. J. Bjerrum-Bohr, P. H. Damgaard, B. Feng, T. Sondergaard, Unusual identities for QCD at tree-level, J. Phys. Conf. Ser. 287 (2011) [arxiv: [hep-ph]]. ATLAS 3D Collaboration, Test Beam Results of 3D Silicon Pixel Sensors for the ATLAS upgrade. (Grenier, P. et al.) Nucl.Instrum.Meth.A638:33-40, [arxiv: ]. K. Aamodt et al., ALICE Collaboration, Production of pions, kaons and protons in pp collisions at sqrt(s)= 900 GeV with ALICE at the LHC, Eur. Phys. J. C 71 (2011) [arxiv: [hep-ex]]. K. Aamodt et al., ALICE Collaboration, Femtoscopy of pp collisions at sqrt{s}=0.9 and 7 TeV at the LHC with two-pion Bose-Einstein correlations, [arxiv: [hep-ex]]. ATLAS Collaboration, Luminosity Determination in pp Collisions at sqrt(s)=7 TeV Using the ATLAS Detector at the LHC. (Aad, G. et al.) Eur.Phys.J.C71:1630, [arxiv: ]. Planck early results 15: Spectral energy distributions and radio continuum spectra of northern extragalactic radio sources. Planck Collaboration: J. Aatrokoski, P. Naselsky, P.R. Christensen et al.. arxiv: Astron. and Astrophys. in press, Spec. Edition (2011). ATLAS Collaboration, Study of Jet Shapes in Inclusive Jet Production in pp Collisions at sqrt(s) = 7 TeV using the ATLAS Detector. (Aad, G. et al.) Phys.Rev.D83:052003, [arxiv: ]. K. Aamodt et al., ALICE Collaboration, Two-pion Bose-Einstein correlations in central Pb-Pb collisions at sqrt(s_nn) = 2.76 TeV, Phys. Lett. B 696 (2011) 328. [arxiv: [nucl-ex]]. K. Aamodt et al., ALICE Collaboration, Strange particle production in proton-proton collisions at sqrt(s) = 0.9 TeV with ALICE at the LHC, Eur. Phys. J. C 71 (2011) [arxiv: [hep-ex]]. K. Aamodt et al., ALICE Collaboration, Centrality dependence of the charged-particle multiplicity density at mid-rapidity in Pb-Pb collisions at sqrt(snn) = 2.76 TeV, Phys. Rev. Lett. 106 (2011) [arxiv: [nucl-ex]]. G. Akemann, P. H. Damgaard, K. Splittorff, J. J. M. Verbaarschot, Spectrum of the Wilson Dirac Operator at Finite Lattice Spacings Phys. Rev. D83 (2011) [arxiv: [hep-lat]]. S. Badger, J. M. Campbell, R. K. Ellis, QCD corrections to the hadronic pro- duction of a heavy quark pair and a W-boson including decay correlations, JHEP 1103 (2011) 027. [arxiv: [hep-ph]]. G. Akemann, P. H. Damgaard, K. Splittorff, J. Verbaarschot, Effects of dynamical quarks on the spectrum of the Wilson Dirac Operator PoS LATTICE2010 (2010) 079. [arxiv: [hep-lat]]. G. Akemann, P. H. Damgaard, K. Splittorff, J. Verbaarschot, Wilson Fermions, Random Matrix Theory and the Aoki Phase PoS LATTICE2010 (2010) 092. [arxiv: [hep-lat]]. B. Alver et al., PHOBOS Collaboration, Phobos results on charged particle multiplicity and pseudorapidity distributions in Au+Au, Cu+Cu, d+au, and p+p collisions at ultra-relativistic energies, Phys. Rev. C 83 (2011) [arxiv: [nucl-ex]]. Jaiseung Kim and Pavel D. Naselsky, Large-angle correlation anomalies and odd-parity preference in CMB data. Astrophys. J., 739, 79 (2011). [arxiv: [astro-ph]]. S. Caron-Huot, D. O Connell, Spinor Helicity and Dual Conformal Symmetry in Ten Dimensions, JHEP 1108 (2011) 014. [arxiv: [hep-th]]. Jaiseung Kim, How to make clean separation of CMB E and B mode with proper foreground masking. Astron. Astrophys., A32, 531 (2011). [arxiv: [astro-ph]]. Jaiseung Kim, Integrated Markov Chain Monte Carlo (MCMC) analysis of primordial non-gaussianity (f_nl) in the recent CMB data. JCAP, 4, 18 (2011). [arxiv: [astro-ph]]. 34 ANNUAL REPORT 35

19 Arsene et al., BRAHMS Collaboration, Rapidity dependence of deuteron production in Au+Au collisions at \sqrt{s_{nn}} = 200 GeV, Phys. Rev. C 83 (2011) [arxiv: [nucl-ex]]. A.G. Doroshkevich, P.D. Naselsky, J. Kim, Jaiseung, M. Hansen et al., The Gauss-Legendre Sky Pixelization for the CMB Polarization Glesp-Pol Errors due to Pixelization of the CMB Sky. IJMP D, 20, 6, 1053 (2011). [arxiv: [astro-ph]]. I. Gabor, Veres (Eotyos U & MIT) et al., PHOBOS Collaboration, System size, energy, centrality and pseudorapidity dependence of charged-particle density in Au+Au and Cu+Cu collisions at RHIC. Indian J.Phys. 85 (2011) [arxiv: [nucl-ex]]. ATLAS Collaboration, QCD at ATLAS: The story so far. (Newman, P. et al) Acta.Phys.Polon.Supp.4: ,2011. ATLAS Collaboration, Offline calibrations and performance of the ATLAS pixel detector. (Dell Asta, L. et al.) Nucl.Instrum.Meth.A650:19-24, ATLAS Collaboration, Alignment of the ATLAS Inner Detector with proton-proton collision data. (Moles-Valls, R. et al.) Nucl.Instrum.Meth.A650: , ATLAS Collaboration, Tracking and vertexing with the ATLAS detector at the LHC. (Hirsch, F. et al.) Nucl.Instrum.Meth.A650: ,2011. ATLAS Collaboration, Commissioning and operation of the ATLAS pixel detector. (Moss, J. et al.) Nucl.Instrum.Meth.A650:1-5, ATLAS Collaboration, Online calibration and performance of the ATLAS pixel detector. (Keil, M. et al.) Nucl.Instrum.Meth.A650:9-13, ATLAS Collaboration, Methods of multiplicity reconstruction in heavy ion collisions in the ATLAS experiment. (Zabinski, B. et al.) Acta Phys.Polon.B42: , ATLAS Collaboration, Performance of tau lepton identification in ATLAS 7-TeV data. (Zemla, A. et al.) Acta Phys.Polon.B42: , ATLAS Collaboration, Performance of tau trigger and tau reconstruction in ATLAS in p p collisions at s**(1/2) = 7-TeV. (Wolter, M. et al.) Acta Phys.Polon.B42: , ATLAS Collaboration, Electron performance with J/psi with the ATLAS detector. (Theveneaux-Pelzer, T. et al.) Acta Phys.Polon.B42: , ATLAS Collaboration, First results from the ATLAS experiment on production of W and Z bosons in proton-proton collisions at s**(1/2) = 7-TeV. (Malecki, P. et al.) Acta Phys.Polon.B42: ,2011. ATLAS Collaboration, Heavy ion physics with the ATLAS detector. (Grabowska-Bold, I. et al.) Acta Phys.Polon.B42: , ATLAS Collaboration, Precision tests of the standard model using the ATLAS detector at the LHC. (Chekanov, S.V. et al.) Acta Phys.Polon.B42: , ATLAS Collaboration, ATLAS potential for elliptic flow measurements in Pb + Pb collisions at LHC. (Toczek, B. et al.) Indian J.Phys.85: , ATLAS Collaboration, Study of jets and their properties in Pb Pb collisions using the ATLAS detector at LHC. (Spousta, M. et al.) Indian J.Phys.85: , ATLAS Collaboration, Operation of the ATLAS semiconductor tracker: Commissioning and performance results with cosmic ray data. (Gonzalez-Sevilla, S. et al.) Nucl.Instrum.Meth. A633:S216-S219, ATLAS Collaboration, Results from the commissioning of the ATLAS Pixel Detector with cosmic ray data. (Ibragimov, I. et al.) Nucl.Instrum.Meth.A633:S220-S223, ATLAS Collaboration, Jet results and jet reconstruction techniques in p + p and their prospects in heavy-ion collisions in ATLAS. (Spousta, M. et al.) Int.J.Mod.Phys.E20: , ATLAS and CMS Collaborations, Physics at the LHC and slhc. (Jakobs, K. et al.) Nucl.Instrum.Meth. A636:S1-S7, ATLAS SCT Collaboration, ATLAS silicon microstrip tracker operation. (Mayne, A. et al.) Nucl.Instrum. Meth.A636:S173-S176, ATLAS Collaboration, The latest results from the ATLAS experiment. (Sbarra, C. et al.) Prog.Theor.Phys. Suppl.187: , ATLAS Collaboration, the ATLAS heavy ion program: Status prior to the first LHC Pb + Pb run. (Cole, B. A. et al.) Nucl.Phys.A855: , ATLAS Collaboration, Underlying event studies and charged particle multiplicities in inelastic p p events with the ATLAS detector. (Behera, P. F. et al.) Nucl.Phys.A855: , ATLAS Collaboration, Jet production cross-section and jet properties in proton-proton collisions at s**(1/2) = 7-TeV with the ATLAS detector. (Fullana, E. et al.) Nucl.Phys.A855: , ANNUAL REPORT 37

20 ATLAS Collaboration, J/psi studies at the ATLAS experiment at LHC. (Maiani, C. et al.) Nucl.Phys. A855: , ATLAS Collaboration, ATLAS results from p p collisions at the LHC. (Andreazza, A. et al.) Nucl.Phys. A855:15-22, ATLAS Collaboration, Charged particle yields and spectra in p + p and heavy ion collisions with ATLAS at the LHC. (Dolejsi, J. et al.) Nucl.Phys.A855: , ATLAS LAr Collaboration, The ATLAS liquid argon calorimeter at the LHC. (Koletsou, I. et al.) Nucl.Instrum.Meth.A628: , ATLAS ID Collaboration, Evaporative cooling in ATLAS: Present and future. (Viehhauser, G. et al.) Nucl.Instrum.Meth.A628: , Collaborations by RD42, ATLAS Diamond Pixel Upgrade and ATLAS Beam Conditions Monitor, Diamond pixel modules and the ATLAS beam conditions monitor. (Dobos, D. et al.) Nucl.Instrum. Meth.A628: , ATLAS Collaboration, Commissioning and performance of the ATLAS transition radiation tracker with cosmic rays and first high energy collisions. (Wagner, P. et al.) Nucl.Instrum.Meth.A628: , ATLAS Collaboration, Commissioning of the ATLAS silicon detectors with cosmic rays and beam data. (Morettini, P. et al.) Nucl.Instrum.Meth.A628:73-76, ATLAS Collaboration, ATLAS silicon microstrip detector operation and performance. (Coniavitis, E. et al.) JINST 6:C01054, ATLAS Collaboration, Progress and advances in serial powering of silicon modules for the ATLAS tracker upgrade. (Matheson, J. et al.) JINST 6:C01019, ATLAS Collaboration, Commissioning and operation of the ATLAS pixel detector at the CERN LHC collider. (Djama, F. et al.) JINST 6:C01082, ATLAS Collaboration, the ATLAS level-1 central trigger. (Stockton, M. et al.) JINST 6:C01075, ATLAS Collaboration, The performance of the ATLAS level-1 calorimeter trigger with LHC collision data. (Bracinik, J. et al.) JINST 6:C01078, ATLAS LAr Collaboration, Optical links for ATLAS liquid argon calorimeter front-end electronics readout. (Liu, T. et al.) JINST 6:C01013, ATLAS LAr Collaboration, A readout driver for the ATLAS LAr-calorimeter at a high Luminosity LHC. (Kielburg-Jeka, A. et al.) JINST 6:C01003, ANNUAL REPORT 39

21 DISCOVERY FINANCING The Discovery budget for 2011 is DKK including overhead from the Danish National Research Foundation. This amount was also in 2011 supplemented by a large number of other grants and by Copenhagen University contributions. In the figure below overhead is not included. EXTERNAL GRANTS BY DISCOVERY GROUPS IN 2011 The Discovery Center has also in 2011 received an impressive and essential supplementary funding from Danish public and private agencies. The additional funding has been granted by The Lundbeck Foundation (two new Junior Group Leader Grants of 10 Mkr each; one recipient moved to another university after having secured a permanent position there), The Danish National Research Council (one 4-year Steno grant, one post-doc grant), the Villum Foundation (one Young Investigator Grant of 4 Mkr). A large Sapere Aude grant and two small Sapere Aude grants started up in 2011 as well. One post-doc at the Discovery Center was also awarded a Marie Curie grant from the EU. Support from the Oticon Foundation has allowed one PhD-student from Russia to spend a year with the Discovery Center. Indirect support to center activities comes from the Niels Bohr International Academy, especially in connection with workshops and PhD schools. DISCOVERY CENTER IS INCLUDED IN NEW COLLABORATION WITH CERN The Discovery Center has been included as participating center in a new agreement between CERN and the Planck Consortium. This opens up for a new crossdisciplinary collaboration between particle physics and cosmology precisely in the spirit of the Discovery Center itself. Topics listed as of common interest are: testing fundamental symmetries like Parity, CPT, and Lorentz Invariance in forthcoming Planck data, constraining neutrino masses and the number of neutrino species, testing theories of Inflation, and many more. As part of the agreement Planck scientists, including those of the Discovery Center, will now have access to CERN facilities. 40 ANNUAL REPORT 41

22 42 ANNUAL REPORT 43