Total Cross Section, Elastic Scattering and Diffraction Dissociation at the LHC
|
|
- Carol Holt
- 5 years ago
- Views:
Transcription
1 Total Cross Section, Elastic Scattering and Diffraction Dissociation at the LHC Marco Bozzo INFN Genova and University of Genova (Italy) on behalf of the TOTEM Collaboration
2 Overview: The experiment and the detectors First observations with the inelastic telescopes Measurement of large-t pp elastic scattering ( GeV 2 ) A look at diffractive and DPE events with TOTEM p. 2
3 TOTEM Physics Overview Total cross-section Elastic Scattering b Forward physics L L tot 2 tot elastic dn dt N N t 0 inelastic Optical Theorem tot ( dn N el / dt) N t 0 inel Diffraction: soft and hard b je t jet p. 3
4 The TOTEM detector set-up 3.1 h h 6.5 T1 T2 p. 4
5 T1 and T2 in the forward region of CMS T1 telescope 5 planes of CSC chambers Wires and cathode strips T2 telescope 10 planes of GEM chambers Strips and pads p. 5
6 Preliminary dn/dh results (T2) Low luminosity runs 2010 T2 plus and minus sides superimposed Raw data s 7 TeV Unfolded data Data taken during scraping exercise And with low intensity bunches of p (low pile-up) Green band = data after vertex cuts p. 6
7 First data (T1) Telescope installed in shutdown So far short periods of data taking with low luminosity (L = cm 2 s 1 ) [March (2.76 TeV), May (7 TeV) ] Detector working Data analysis in progress Vertex reconstruction h Distributions (uncorrected) 7 TeV Vertex reconstruction is affected by the CMS magnetic field. p. 7
8 PP ELASTIC SCATTERING t-range: GeV 2 p. 8
9 The Roman Pot Unit BPM Vertical Pots Horizontal Pot p. 9
10 2010 Runs Topology near and far units diagonals Low selection (3σ) x RP,45 <3σ L x,45 =0 x RP,56 <3σ L x,56 =0 corr. y RP216,45 y RP220,45 corr. y RP216,56 y RP220,56 Elastic colinearity (3σ) θ x,45 * θ x,56 * θ y,45 * θ y,56 * Only 220 moved close to the beams - vertical 7σ ~ 3 mm from circulating beams - low pile-up Integrated luminosity : 6.2 nbarn -1 Total triggers 5.28M Reconstructed tracks & elastic topology 293k Low selection 70.2k Collinearity cuts 66.0k Diagonals analysed independently p. 10
11 Proton reconstruction Both angle projections reconstructed: Θ x * and Θ y * Θ x * from Θ RP220 (through dl x /ds) Θ x = dl x /ds Θ x * Θ y * from RP220 (through L y ) y = L y Θ y * Excellent beam optics understanding Magnet currents measured Measurements of actual beam optics parameters with elastic scattering Θ left * = Θ right * (proton pair colinearity) Proton position angle correlations L x =0 determination, coupling corrections Fine geometric alignment Alignment between pots with overlapping tracks ( 1μm) Alignment with respect to the beam scraping exercise ( 20μm) Mechanical constraints between top and bottom pots ( 10μm) Track based alignment p. 11
12 Proton tracks in one diagonal (left-right coincidences) Sector 56 t = -p 2 q 2 Dp/p Sector 45 y = L y Q y x = L x Q x + D L x ~ 0 p. 12
13 Low = Dp/p cuts x < 3σ L x = 0 y RP near,45 y RP far,45 (dly/ds 0) p. 13
14 Elastic colinearity cuts Data outside the 3σ cuts used for background estimation p. 14
15 t y -acceptance corrections Resolution Missing acceptance in θ y * t <0.36GeV 2 removed Resolution : compatible with beam divergence of 17 mrad p. 15
16 -acceptance correction Accepted (t) Diagonal Θ * Total -acceptance correction No. t [GeV 2 ] Θ * [rad] Accepted (2 diag.) [ ] accept. correct. factor E E E E E E Accepted (t) Diagonal 2 t <0.36GeV 2 removed Critical at low t-acceptance limit p. 16
17 Efficiency determination Method 3 out of 4 : full elastic analysis with 3 T (track segments) instead of 4 (56 far) 3 pots out of 4 used to determine efficiency of missing pot 4 pot-diagonal efficiency computed via consequent combinations Studied Correlated pots inefficiencies for 2T/4 Determine inefficiency in detection of pp Efficiency correction t-independent = >>> breakdown of triggers : ~90% on background (showers) ; ~5% cut by RP acceptance ; ~5% pp pairs p. 17
18 Background and resolution determination signal background combined B/S = (8±1)% σ * =17.8 mrad (beam divergence) Data Combined background (t) Dθ x /sqrt(2) Signal to background normalisation σ * t-reconstruction resolution: ( t) t (also as a function of Dθ y ) * 2 p t : 0.4 GeV 1GeV 3 GeV :14% :8.8% :5.1% -t [GeV 2 ] Signal vs. background (t) t =0.4GeV 2 : B/S = (11±2)% t =0.5GeV 2 : B/S = (19±3)% t =1.5GeV 2 : B/S = (0.8±0.3)% p. 18
19 Differential pp cross-section EPL, 95 (2011) p. 19
20 Statistical and Systematic uncertainties for the t and d /dt results p. 20
21 pp Elastic Scattering - ISR to Tevatron ISR ~ 1.7 GeV 2 ~ 0.7 GeV 2 ~0.5 GeV 2 Diffractive minimum: analogous to Fraunhofer diffraction: t ~p 2 q 2 exponential slope B at low t increases minimum moves to lower t with increasing s interaction region grows (as also seen from s tot ) depth of minimum changes shape of proton profile changes depth of minimum differs between pp, pˉp different mix of processes p. 21
22 Comparison with models B (t=-0.4 GeV 2 ) t DIP t -x [1.5 2 GeV 2 ] Islam Jenkovsky Petrov Bourrely Block TOTEM 23.6 ± ± ± 0.3 p. 22
23 DIFFRACTIVE EVENTS p. 23
24 Dominant Event Classes in p-p Collisions Elastic Scattering h = - ln tan q/2 Single Diffraction M Double Diffraction Double Pomeron Exchange M p. 24
25 Single diffraction low Correlation between leading proton and forward detector T2 SD Rapidity Gap Dh = -ln M X 2 = s h sector 45 IP sector 56 RP T2 T2 RP Low <0.15% p. 25
26 Single diffraction large correlation between leading proton and forward detector T2 SD Rapidity Gap Dh = -ln M X 2 = s sector 45 IP sector 56 h RP T2 T2 RP Large >6.5% p. 26
27 Double Pomeron Exchange (DPE) DPE Rapidity Gap Dh -ln 1 M PP 2 = 1 2 s -ln 2 h -ln tan q/2 USE the LHC as a Pomeron-Pomeron (Gluon - Gluon) Collider p. 27
28 Double Pomeron Exchange correlation between leading proton and forward detector T2 sector 45 IP sector 56 RP T2 T2 RP low ξ high ξ <1.5% >1.5% p. 28
29 First attempt at DPE Mass Reconstruction 1 < 1.5%; 2 > 5.0% Mass [GeV] p. 29
30 Summary The TOTEM detector is fully installed and has started to produce Physics results Measurement of elastic scattering for t between.36 and 2.5 GeV2 the dip in proton proton has been clearly observed, data have been published Measurement of total cross section T2 telescope: preliminary distribution dn/dh T1 telescope: ready to do physics The potentiality of the combined system of RP and inelastic telescopes to observe and measure Single diffractive and Double Pomeron Exchange events has been demonstrated. p. 30
31 Thank you for your attention Our data are now published in EPL, 95 (2011) p. 31
Total Cross Section, Elastic Scattering and Diffraction Dissociation at the LHC
Total Cross Section, Elastic Scattering and Diffraction Dissociation at the LHC Marco Bozzo INFN Genova e Universita di Genova (Italy) [for the TOTEM collaboration] Marco Bozzo 1 Outlook The TOTEM experiment
More informationFrigyes Nemes (Eötvös University) on behalf of the TOTEM collaboration
Frigyes Nemes (Eötvös University) on behalf of the TOTEM collaboration http://totem.web.cern.ch/totem/ Hadron Structure'13 2013, 29 June 4 July Hadron Structure'13 6/18/2013 Frigyes Nemes, TOTEM 1 Total
More informationFirst Measurements of Proton-Proton Elastic Scattering and Total Cross-Section at the LHC. EDS 2011 Qui Nhon, Vietnam
First Measurements of Proton-Proton Elastic Scattering and Total Cross-Section at the LHC EDS 2011 Qui Nhon, Vietnam Mario Deile on behalf of the TOTEM Collaboration p. 1 Experimental Setup @ IP5 Inelastic
More informationJános Sziklai. WIGNER RCP On behalf of the TOTEM Collaboration:
Elastic scattering, total cross-section and charged particle pseudorapidity density in 7 TeV pp reactions measured by the TOTEM Experiment at the LHC János Sziklai WIGNER RCP On behalf of the TOTEM Collaboration:
More informationResults, Status and Perspectives for 2010/11. Karsten Eggert on behalf of the TOTEM Collaboration
Results, Status and Perspectives for 2010/11 Karsten Eggert on behalf of the TOTEM Collaboration Workshop on Hadron Hadron & Cosmic-Ray Interactions at multi-tev Energies ECT* - Trento, Nov 29th Dec 3
More informationMeasurements of Proton-Proton Elastic Scattering and Total Cross-Section at the LHC by TOTEM Diffraction 2012 Lanzarote, 15 September
Measurements of Proton-Proton Elastic Scattering and Total Cross-Section at the LHC by TOTEM Diffraction 2012 Lanzarote, 15 September Mario Deile on behalf of the TOTEM Collaboration p. 1 Experimental
More informationAtlas results on diffraction
Atlas results on diffraction Alessia Bruni INFN Bologna, Italy for the ATLAS collaboration Rencontres du Viet Nam 14th Workshop on Elastic and Diffractive Scattering Qui Nhon, 16/12/2011 EDS 2011 Alessia
More information(Experimental) Soft Diffraction at LHC. Jan Kašpar. ISMD2017, Tlaxcala, Mexico 15 September, 2017
(Experimental) Soft Diffraction at LHC Jan Kašpar ISMD2017, Tlaxcala, Mexico 15 September, 2017 Introduction selected processes: Elastic scattering p + p p + p Single diffraction p + p p + X Double diffraction
More informationTOTEM Update BSM? Fredrik Oljemark (Helsinki Univ. & HIP) On behalf of the TOTEM Collaboration Jyväskylä, TOTEM p. 1
TOTEM Update Fredrik Oljemark (Helsinki Univ. & HIP) b BSM? On behalf of the TOTEM Collaboration Jyväskylä, 25.11.2016 TOTEM p. 1 TOTEM Physics Overview Total cross-section Elastic Scattering b Forward
More informationFIRST MEASUREMENTS OF PROTON-PROTON ELASTIC SCATTERING AND TOTAL CROSS-SECTION AT THE LHC BY TOTEM
FIRST MEASUREMENTS OF PROTON-PROTON ELASTIC SCATTERING AND TOTAL CROSS-SECTION AT THE LHC BY TOTEM M. DEILE on behalf of the TOTEM Collaboration CERN, 111 Genève 3, Switzerland The TOTEM experiment at
More informationElastic and inelastic cross section measurements with the ATLAS detector
Elastic and inelastic cross section measurements with the ATLAS detector Simon Holm Stark Niels Bohr Institute University of Copenhagen MPI@LHC 2017 December 13, 2017, Shimla, India Outline: Physics motivation.
More informationarxiv:hep-ex/ v1 27 Oct 2004
Proceedings of the DIS 2004, Štrbské Pleso, Slovakia TOTEM: FORWARD PHYSICS AT THE LHC arxiv:hep-ex/0410084v1 27 Oct 2004 MARIO DEILE ON BEHALF OF THE TOTEM COLLABORATION CERN 1211 Genève 23, Switzerland
More informationA Triple-GEM Telescope for the TOTEM Experiment
A Triple-GEM Telescope for the TOTEM Experiment Giuseppe Latino (Siena University & Pisa INFN) IPRD06 Siena October 4, 2006 TOTEM Experiment @ LHC T2 Telescope 3-GEM Technology Detailed Detector Simulation
More informationMeasurements of the total and inelastic pp cross section with the ATLAS detector at 8 and 13 TeV
Measurements of the total and inelastic pp cross section with the ATLAS detector at 8 and 13 TeV Motivation Measurements of the total and inelastic cross sections and their energy evolution probe the non-perturbative
More informationTotal pp cross section measurements at 2, 7, 8 and 57 TeV
Total pp cross section measurements at 2, 7, 8 and 57 TeV A) One (out of several) theoretical framework B) Topologies of events in σ tot C) Direct measurement of σ inel : 1) cosmic-ray experiments 2) collider
More informationMeasurements of the elastic, inelastic and total cross sections in pp collisions with ATLAS subdetectors
Measurements of the elastic, inelastic and total cross sections in pp collisions with ATLAS subdetectors 1 On behalf of the ATLAS collaboration University of Bologna Viale Berti Pichat 6/2,40127 Bologna,
More informationElastic and Total Cross-Section Measurements by TOTEM: Past and Future
Elastic and Total Cross-Section Measurements by TOTEM: Past and Future CERN (Also at Wigner RCP, Hungary) E-mail: fnemes@cern.ch The TOTEM experiment at the LHC has measured proton-proton elastic scattering
More informationTotal, elastic and inelastic p-p cross sections at the LHC
Total, elastic and inelastic p-p cross sections at the LHC Tomáš Sýkora, Charles University in Prague on behalf of the ATLAS, CMS, LHCb and TOTEM collaborations ICHEP 2016, August 3-10, 2016, Chicago outline
More informationRecent forward physics and diffraction results from CMS
Recent forward physics and diffraction results from CMS Gabor Veres (CERN) on behalf of the CMS Collaboration ISMD 2015 Conference, Wildbad Kreuth, Germany October 5th, 2015 Outline CMS: forward instrumentation
More informationRecent results on soft QCD topics from ATLAS
Recent results on soft QCD topics from ATLAS Roman Lysák Institute of Physics, Prague on behalf of the ATLAS collaboration Bormio 2016 Overview Understanding of soft-qcd interactions has direct impact
More informationResults from combined CMS-TOTEM data
Department of Physics Engineering, Hacettepe University, Ankara, Turkey The University of Iowa, Iowa City, USA E-mail: Sercan.Sen@cern.ch The combined data taking of the CMS and TOTEM experiments allows
More informationThe majorityofevents with a leading proton with 0:6 < x L < 0:9. do not have a visible large pseudorapidity gap in the interval
Conclusions DIS events with a leading baryon show the same dependence on x y Q 2 W and track multiplicity as `normal' DIS. The majorityofevents with a leading proton with 0:6 < x L < 0:9 do not have a
More informationarxiv: v1 [hep-ex] 9 Sep 2017
γγ and γp measurements with forward proton taggers in CMS+TOTEM J. Hollar, on behalf of the CMS and TOTEM Collaborations LIP, Lisbon, Portugal arxiv:179.985v1 [hep-ex] 9 Sep 17 1 Introduction Abstract
More informationLuminosity measurements and diffractive physics in ATLAS
Luminosity measurements and diffractive physics in ATLAS DAPNIA-SPP, CEA Saclay, F91191 Gif-sur-Yvette, France E-mail: royon@hep.saclay.cea.fr We first describe the measurement of the elastic scattering
More informationDIFFRACTIVE DIJET PRODUCTION AT CDF. Konstantin Goulianos (for the CDF II Collaboration)
DIFFRACTIVE DIJET PRODUCTION AT CDF Konstantin Goulianos (for the CDF II Collaboration) 1 CONTENTS Introduction / motivation Diffractive dijets Summary 2 STUDIES OF DIFFRACTION IN QCD Non-diffractive color-exchange
More informationMBR Monte Carlo Simulation in PYTHIA8
The Rockefeller University, 10 York Avenue, New York, NY 06, USA E-mail: robert.ciesielski@rockefeller.edu Konstantin Goulianos The Rockefeller University, 10 York Avenue, New York, NY 06, USA E-mail:
More informationEvidence for Non-Exponential Differential Cross-Section of pp Elastic Scattering at Low t and s=8tev by TOTEM
EPJ Web of Conferences will be set by the publisher DOI: will be set by the publisher c Owned by the authors, published by EDP Sciences, 2016 Evidence for Non-Exponential Differential Cross-Section of
More informationPoS(DIS 2013)083. New Results on Diffractive and Exclusive Production from CDF
New Results on Diffractive and Exclusive Production from CDF The Rockefeller University E-mail: dino@rockefeller.edu We present results on central exclusive production of + in pp collisions at s = 9 and
More informationPhoton photon and photon nucleus physics at the LHC
Photon photon and photon nucleus physics at the LHC Michael Murray, University of Kansas 1 JPos17 13 th September 2017 Photon studies at the LHC 1) Search for new physics from ƔƔ => high mass ATLAS, CMS-TOTEM
More informationTotal Inelastic Cross Section at LHC. Sara Valentinetti, INFN and Univ. of Bologna (Italy) On behalf of ATLAS and CMS
Total Inelastic Cross Section at LHC Sara Valentinetti, INFN and Univ. of Bologna (Italy) On behalf of ATLAS and CMS LC13 Workshop, ECT*, Villa Tambosi, Villazzano (TN), 16-20 Sep 2013 Outline Introduction
More informationForward QCD studies and prospects at the LHC
Forward QCD studies and prospects at the LHC Pierre.VanMechelen@ua.ac.be (*) INT Workshop on Perturbative and Non-Perturbative Aspects of QCD at Collider Energies 1 Seattle, September 13-18, 2010 (*) As
More informationTim Martin - University of Birmingham
Tim Martin - University of Birmingham 1 2 Overview Modeling Inelastic Diffraction Diffractive Events in ATLAS Large Rapidity Gaps Interpreting the Data 3 pp Cross Section Double Diff. Central Exclusive
More informationarxiv: v1 [hep-ex] 5 Mar 2017
Recent CMS Results on Diffraction arxiv:703.0604v [hep-ex] 5 Mar 207 Roland Benoît on behalf of the CMS Collaboration DESY - CMS Notkestrasse 85, 22603 Hamburg Germany Abstract Recent CMS results on diffraction
More informationHard Diffraction Results and Prospects at the Tevatron
Hard Diffraction Results and Prosects at the Tevatron University of Manchester On behalf of the CDF & DØ Collaboration ISMD 2005 14 th August, Kromeriz Tevatron Tevatron at Fermilab -collisions Run II:
More informationResults and Perspectives in Forward Physics with ATLAS
Nuclear Physics B Proceedings Supplement 00 (2015) 1 9 Nuclear Physics B Proceedings Supplement Results and Perspectives in Forward Physics with ATLAS B. Giacobbe on behalf of the ATLAS Collaboration Istituto
More informationarxiv: v1 [hep-ex] 16 Aug 2010
arxiv:8.75v1 [hep-ex] 16 Aug Measurement of inclusive diffractive deep inelastic scattering using VFPS at H1 Université Libre de Bruxelles E-mail: hreus@mail.desy.de Performances of the Very Forward Proton
More informationLavinia-Elena Giubega
Lavinia-Elena Giubega *on behalf of LHCb collaboration Horia Hulubei National Institute for Physics and Nuclear Engineering (IFIN-HH), Bucharest, Romania Beach 2018 - XIII International Conference on Beauty,
More informationPhysics with Tagged Forward Protons using the STAR Detector at RHIC. The Relativistic Heavy Ion Collider The pp2pp Experiment STAR 2009
Physics with Tagged Forward Protons using the STAR Detector at RHIC The Relativistic Heavy Ion Collider The pp2pp Experiment 2002 2003 STAR 2009 Elastic and Diffractive Processes Elastic scattering Detect
More informationQCD at CDF. Régis Lefèvre IFAE Barcelona On behalf of the CDF Collaboration
QCD at CDF Régis Lefèvre IFAE Barcelona On behalf of the CDF Collaboration Jet Inclusive Cross-Section Underlying event studies Jet Shapes Specific processes _ W+Jets, γ + γ, γ + b/c, b-jet / bb jet Diffraction
More informationFederico Antinori (INFN Padova, Italy) on behalf of the ALICE Collaboration
Federico Antinori (INFN Padova, Italy) on behalf of the ALICE Collaboration ALICE run 2009-2010 Detector performance First physics results A taste of other analyses in advanced stage Outlook / Conclusion
More informationTagging with Roman Pots at RHIC. Proton tagging at STAR
Tagging with Roman Pots at RHIC Proton tagging at STAR Elastic and Diffractive Processes in High Energy Proton Scattering Elastic scattering Detect protons in very forward direction with Roman Pots (RPs)
More informationTiming Measurements in the Vertical Roman Pots of the TOTEM Experiment Technical Design Report
CERN-LHCC-2014-020 TOTEM-TDR-002 15 September 2014 TOTEM CERN-LHCC-2014-020 / TOTEM-TDR-002 18/09/2014 Timing Measurements in the Vertical Roman Pots of the TOTEM Experiment Technical Design Report CERN-LHCC-2014-020,
More informationStudy of inelastic processes in proton-proton collisions at the LHC with the TOTEM Experiment
Università deglistudidipisa FacoltàdiScienzeMatematicheFisicheeNaturali Corso di Laurea in Scienze Fisiche Curriculum Fisica delle Interazioni Fondamentali Tesi di Laurea Specialistica Study of inelastic
More informationSome studies for ALICE
Some studies for ALICE Motivations for a p-p programme in ALICE Special features of the ALICE detector Preliminary studies of Physics Performances of ALICE for the measurement of some global properties
More informationLuminosity measurement at LHC
Luminosity measurement at LHC Corsi di Dottorato congiunti BO-FE-PD Corso di Fisica delle Alte Energie Aprile 2012 Per Grafstrom CERN Che cosa è la luminosita? Organizzazione Perche misurare la luminosita?
More informationHadron Collider Physics, HCP2004, June 14-18
) " % "" ' & % % " ) " % '% &* ' ) * ' + " ' ) ( $#! ' "") ( * " ) +% % )( (. ' + -, '+ % &* ' ) ( 021 % # / ( * *' 5 4* 3 %( '' ' " + +% Hadron Collider Physics, HCP2004, June 14-18 The Run II DØ Detector
More informationMeasurement of the Inclusive Isolated Prompt Photon Cross Section at CDF
of the Inclusive Isolated Cross at IFAE Barcelona HEP Seminar University of Virginia Outline Theoretical introduction Prompt photon production The The Photon detection prediction The pqcd NLO prediction
More informationMini-Bias and Underlying Event Studies at CMS
Yuan Chao Department of Physics National Taiwan University 1617 Taipei, TAIWAN 1 Introduction The Tevatron experiments provide us very good information for the quantum chromodynamics (QCD) modelings of
More informationQCD Studies at LHC with the Atlas detector
QCD Studies at LHC with the Atlas detector Introduction Sebastian Eckweiler - University of Mainz (on behalf of the ATLAS Collaboration) Examples of QCD studies Minimum bias & underlying event Jet-physics
More informationTransverse momentum and pseudorapidity distributions with minimum bias events in CMS at the LHC
Transverse momentum and pseudorapidity distributions with minimum bias events in CMS at the LHC Christof Roland/ MIT For the CMS Collaboration Rencontres de Moriond QCD Session 14 th March, 2010 Moriond
More informationLuminosity determination at proton colliders. November 2015 Per Grafstrom CERN and University of Bologna
Luminosity determination at proton colliders November 2015 Per Grafstrom CERN and University of Bologna 1 % Range of precision in luminosity measurements in % 6 5 4 Tevatron 3 2 SPS collider 1 ISR LHC
More informationConcept of Luminosity
Concept of Luminosity (in particle colliders) Werner Herr, CERN, AB Department Bruno Muratori, Daresbury Laboratory (/afs/ictp/home/w/wfherr/public/cas/doc/luminosity.pdf) (http://cern.ch/lhc-beam-beam/talks/trieste
More informationarxiv: v2 [hep-ex] 7 Nov 2014
EUROPEAN ORGANISATION FOR NUCLEAR RESEARCH (CERN) CERN-PH-EP-2014-177 Submitted to: Nuclear Physics B arxiv:1408.5778v2 [hep-ex] 7 Nov 2014 Measurement of the total cross section from elastic scattering
More informationLuminosity measurement and K-short production with first LHCb data. Sophie Redford University of Oxford for the LHCb collaboration
Luminosity measurement and K-short production with first LHCb data Sophie Redford University of Oxford for the LHCb collaboration 1 Introduction Measurement of the prompt Ks production Using data collected
More informationRecent DØ results in Diffractive and Jet Physics
Recent DØ results in Diffractive and Jet Physics * Fermi National Accelerator Laboratory, P.O. Box 500, Batavia, IL 60510 E-mail: odell@fnal.gov DØ measurements of the inclusive jet cross section and the
More informationForward detectors at ATLAS
Forward Physics at LHC Manchester 12 14 December 2010 Forward detectors at ATLAS Sara Valentinetti University of Bologna & INFN On behalf of the ATLAS collaboration 1 Summary Why Forward Detectors: Forward
More informationMeasurement of the associated production of direct photons and jets with the Atlas experiment at LHC. Michele Cascella
Measurement of the associated production of direct photons and jets with the Atlas experiment at LHC Michele Cascella Graduate Course in Physics University of Pisa The School of Graduate Studies in Basic
More informationDetecting. Particles
Detecting Experimental Elementary Particle Physics Group at the University of Arizona + Searching for Quark Compositeness at the LHC Particles Michael Shupe Department of Physics M. Shupe - ATLAS Collaboration
More informationForward Physics at LHC
1 Forward Physics at LHC Risto Orava University of Helsinki and Helsinki Institute of Physics Physics Objectives & Background A Case Study at LHC - ATLAS Detectors for the Forward Spectrometer Planned
More informationMBR Monte Carlo Simulation in PYTHIA8
MBR Monte Carlo Simulation in PYTHIA8 Robert Ciesielski, Konstantin Goulianos The Rockefeller University, 130 York Avenue, New York, NY 10065, USA E-mail: robert.ciesielski@rockefeller.edu, dino@rockefeller.edu
More informationPrecision RENORM / MBR Predictions for Diffraction at LHC
Precision RENORM / MBR Predictions for Diffraction at LHC Konstantin Goulianos http://physics.rockefeller.edu/dino/my.html Precision predictions? Wow! 1 Basic and combined diffractive CONTENTS processes
More informationThe Compact Muon Solenoid Experiment. Conference Report. Mailing address: CMS CERN, CH-1211 GENEVA 23, Switzerland. Commissioning of the CMS Detector
Available on CMS information server CMS CR -2009/113 The Compact Muon Solenoid Experiment Conference Report Mailing address: CMS CERN, CH-1211 GENEVA 23, Switzerland 15 May 2009 Commissioning of the CMS
More informationSOFT QCD AT ATLAS AND CMS
SAHAL YACOOB UNIVERSITY OF CAPE TOWN ON BEHALF OF THE ATLAS AND CMS COLLABORATIONS SOFT QCD AT ATLAS AND CMS 28th Rencontres de Blois INTRODUCTION IN 15 MINUTES 2 Inelastic cross section ATLAS and CMS
More informationXIth International Conference on Elastic and Diffractive Scattering Château de Blois, France, May 15-20, 2005 arxiv:hep-ex/ v1 31 Oct 2005
XIth International Conference on Elastic and Diffractive Scattering Château de Blois, France, May 15-20, 2005 arxiv:hep-ex/0510078v1 31 Oct 2005 Elastic Cross-Section and Luminosity Measurement in ATLAS
More information2 ATLAS operations and data taking
The ATLAS experiment: status report and recent results Ludovico Pontecorvo INFN - Roma and CERN on behalf of the ATLAS Collaboration 1 Introduction The ATLAS experiment was designed to explore a broad
More informationDiffraction Physics at LHCb
Diffraction Physics at LHCb Michael Schmelling LHCb / MPI for Nuclear Physics The LHCb Experiment Energy Flow Central Exclusive Production New Developments Summary Diffraction Physis at LHCb M. Schmelling,
More informationDiffraction and rapidity gap measurements with ATLAS
Diffraction and rapidity gap measurements with On behalf of the Collaboration Institute of Physics, Academy of Sciences of the CR E-mail: vlastimil.kus@cern.ch ATL-PHYS-PROC-04-004 08/0/04 Two diffraction
More informationExclusive Central π+π- Production in Proton Antiproton Collisions at the CDF
Exclusive Central π+π- Production in Proton Antiproton Collisions at the CDF Maria Żurek Research Center Jülich University of Cologne on behalf of the CDF Collaboration XLV International Symposium on Multiparticle
More informationTechnology of the TOTEM Roman Pots and Future Detectors Upgrade
17th Lomonosov Conference оn Elementary Particle Physics Moscow State University, August 20-26, 2015. Technology of the TOTEM Roman Pots and Future Detectors Upgrade D. Druzhkin (CERN), on behalf of TOTEM
More informationCharged particle multiplicity in proton-proton collisions with ALICE
Charged particle multiplicity in proton-proton collisions with ALICE Introduction on the motivations for a pp physics programme with ALICE A short review on the detectors used to reconstruct charged particle
More informationLHC commissioning. 22nd June Mike Lamont LHC commissioning - CMS 1
LHC commissioning Mike Lamont AB-OP nd June 005.06.05 LHC commissioning - CMS 1 Detailed planning for 7-87 8 and 8-18 005 006 Short Circuit Tests CNGS/TI8/IT1 HWC LSS.L8.06.05 LHC commissioning - CMS Sector
More informationLecture LHC How to measure cross sections...
Lecture 5b:Luminosity @ LHC How to measure cross sections... Cross Section & Luminosity Luminosities in run-i @ LHC How to measure luminosity Cross Section & Luminosity Methods for Luminosity Measurement
More informationForward nucleon tagging at EIC. J.H. Lee BNL
Forward nucleon tagging at EIC J.H. Lee BNL EIC User Group Meeting 218 Outline EIC physics with (far-)forward nucleon tagging focusing on protons with Roman Pots Interaction Region integration Requirement
More informationAGH-UST University of Science and Technology, Faculty of Physics and Applied Computer Science, Krakow, Poland
Central Exclusive Production at LHCb AGH-UST University of Science and Technology, Faculty of Physics and Applied Computer Science, Krakow, Poland E-mail: brachwal@agh.edu.pl The LHCb detector, with its
More informationFirst TOTEM measurement of large t proton proton elastic scattering at the LHC energy of s =7 TeV
SLAC-PUB-15997 First TOTEM measurement of large t proton proton elastic scattering at the LHC energy of s =7 TeV,6a,6b, On behalf of the TOTEM Collaboration. G. Antchev, P. Aspell 8, I. Atanassov 8, V.
More informationECFA Meeting March 9 10, Prague. Alexander Kupčo. Institute of Physics, Center for Particle Physics, Prague
ECFA Meeting March 9, Prague Alexander Kupčo Institute of Physics, Center for Particle Physics, Prague DIRAC experiment Phase I: Precise measurement of pionium lifetime Alexander Kupčo, Institute of Physics,
More informationPhysics potential of ATLAS upgrades at HL-LHC
M.Testa on behalf of the ATLAS Collaboration INFN LNF, Italy E-mail: marianna.testa@lnf.infn.it ATL-PHYS-PROC-207-50 22 September 207 The High Luminosity-Large Hadron Collider (HL-LHC) is expected to start
More informationExclusive diffractive results from ATLAS, CMS, LHCb, TOTEM at the LHC
Exclusive diffractive results from ATLAS, CMS, LHCb, TOTEM at the LHC Christophe Royon 1, 1 Department of Physics and Astronomy, The University of Kansas, Lawrence, USA On behalf of the ATLAS, CMS, LHCb
More informationQCD at the Tevatron: The Production of Jets & Photons plus Jets
QCD at the Tevatron: The Production of Jets & Photons plus Jets Mike Strauss The University of Oklahoma The Oklahoma Center for High Energy Physics for the CDF and DØD Collaborations APS 2009 Denver, Colorado
More informationHomework 4: Fermi s Golden Rule & Feynman Diagrams
tot = 1 + 2 Nel + N inel, (4) where N el and N inel represent respectively the elastic and inelastic rates integrated over a given data taking period. Using the above equation, the elastic and inelastic
More informationVector meson photoproduction in ultra-peripheral p-pb collisions measured using the ALICE detector
Vector meson photoproduction in ultra-peripheral p-pb collisions measured using the ALICE detector Jaroslav Adam On behalf of the ALICE Collaboration Faculty of Nuclear Sciences and Physical Engineering
More informationMeasurement of the baryon number transport with LHCb
Measurement of the baryon number transport with LHCb Marco Adinolfi University of Bristol On behalf of the LHCb Collaboration 13 April 2011 / DIS 2011 Marco Adinolfi DIS 2011-13 April 2011 - Newport News
More informationOn the possibility of measuring the single-tagged exclusive jets at the LHC
Eur. Phys. J. C (215) 75:32 DOI 1.114/epjc/s152-15-3541-3 Regular Article - Experimental Physics On the possibility of measuring the single-tagged exclusive jets at the LHC Maciej Trzebiński a, Rafał Staszewski,
More informationPhysics at Hadron Colliders Part II
Physics at Hadron Colliders Part II Marina Cobal Università di Udine 1 The structure of an event One incoming parton from each of the protons enters the hard process, where then a number of outgoing particles
More informationRENORM Tensor-Pomeron Diffractive Predictions K. Goulianos
RENORM Tensor-Pomeron Diffractive Predictions Konstantin Goulianos The Rockefeller University (Dino) http://physics.rockefeller.edu/dino/my.html thanks to Tran & Kim! photo credit: Emmanuelle Tran 1 Basic
More informationPrecision RENORM Tensor-Pomeron Cross Sections K. Goulianos
Precision RENORM Tensor-Pomeron Cross Sections Konstantin Goulianos The Rockefeller University http://physics.rockefeller.edu/dino/my.html 5 th International Conference on New Frontiers in Physics ICNFP2016
More informationReport from the LHC Forward Physics Working Group 2014, Kraków
Report from the LHC Forward Physics Working Group MPI@LHC 2014, Kraków Tim Martin On behalf of the LHC Forward Physics Working Group University of Warwick November 5, 2014 Introduction Understanding of
More informationHeavy Hadron Production and Spectroscopy at ATLAS
Heavy Hadron Production and Spectroscopy at ALAS Carlo Schiavi on behalf of the ALAS Collaboration INFN Sezione di Genova ALAS has studied heavy flavor production and measured the production cross sections
More informationMeasurements of the Proton F L and F 2 Structure Functions at Low x at HERA
Measurements of the Proton F L and F 2 Structure Functions at Low x at HERA Andrei Nikiforov DESY on behalf of the H1 and ZEUS collaborations Moriond QCD, La Thuile, 13 March 2008 Andrei Nikiforov DESY
More informationOctober 4, :33 ws-rv9x6 Book Title main page 1. Chapter 1. Measurement of Minimum Bias Observables with ATLAS
October 4, 2018 3:33 ws-rv9x6 Book Title main page 1 Chapter 1 Measurement of Minimum Bias Observables with ATLAS arxiv:1706.06151v2 [hep-ex] 23 Jun 2017 Jiri Kvita Joint Laboratory for Optics, Palacky
More informationRENORM Tensor-Pomeron Diffractive Predictions. Konstantin Goulianos
RENORM Tensor-Pomeron Diffractive Predictions Konstantin Goulianos The Rockefeller University (Dino) http://physics.rockefeller.edu/dino/my.html thanks to Tran & Kim! photo credit: Emmanuelle Tran Moriond
More informationMuon Alignment at CMS
Muon Alignment at CMS for CMS Collaboration 1 The CMS Detector Compact Muon Solenoid 8[7] TeV in Run 1 > 13 TeV for Run 2 4 main components Tracker Electromagnetic Calorimeter Hadron Calorimeter Superconducting
More informationResults From The HARP Experiment
Results From The HARP Experiment Lara Howlett University of Sheffield Overview of HARP and forward analysis Al analysis for K2K experiment Be analysis for MiniBooNE experiment Motivations Systematic study
More informationMeasuring very forward (backward) at the LHeC
Measuring very forward (backward) at the LHeC Armen Buniatyan DESY Detectors located outside of the main detector (~ 10 100m from the Interaction Point) Goals: Instantaneous luminosity Tag photo-production
More informationNeutral particles energy spectra for 900 GeV and 7 TeV p-p collisions, measured by the LHCf experiment
Neutral particles energy spectra for 900 GeV and 7 TeV p-p collisions, measured by the LHCf experiment Raffaello D Alessandro 1 Department of Physics Università di Firenze and INFN-Firenze I-50019 Sesto
More informationATLAS NOTE ATLAS-CONF July 2, 2014
ATLAS NOTE ATLAS-CONF4-4 July, 14 Measurement of the total cross section from elastic scattering in pp collisions at s=7 TeV with the ATLAS detector The ATLAS Collaboration Abstract ATLAS-CONF4-4 5 July
More informationA Very Forward Proton Spectrometer for H1 1
A Very Forward Proton Spectrometer for H1 1 Pierre Van Mechelen 2 Physics Department University of Antwerpen (UIA) Universiteitsplein 1-261 Antwerpen - Belgium E-mail: Pierre.VanMechelen@ua.ac.be Abstract.
More informationPrecision RENORM Tensor-Pomeron Cross Sections at LHC and Beyond
Precision RENORM Tensor-Pomeron Cross Sections at LHC and Beyond Konstantin Goulianos The Rockefeller University http://physics.rockefeller.edu/dino/my.html http://www.cs.infn.it/diff2016 1 Basic and combined
More informationV 0 production studies at LHCb. Mathias Knecht, EPFL , joint SPS-ÖPG-ÖGA 2 meeting, Innsbrück, Österreich, September 2-4, 2009
V 0 production studies at LHCb Mathias Knecht, EPFL 2 9 2009, joint SPS-ÖPG-ÖGA 2 meeting, Innsbrück, Österreich, September 2-4, 2009 Outline One of the first measurements to be done with the LHCb detector...
More informationThe LHCb detector. Eddy Jans (Nikhef) on behalf of the LHCb collaboration
The LHCb detector Eddy Jans (Nikhef) on behalf of the LHCb collaboration design of sub-detectors, trigger and DAQ performance: resolutions and PID-properties commissioning with cosmics and beam induced
More information