Heavy quark production and large-x nuclear gluons at EIC
|
|
- Tyrone Jacobs
- 6 years ago
- Views:
Transcription
1 Heavy quark production and large-x nuclear gluons at EIC C. Weiss (JLab), Santa Fe Jets and Heavy Flavor Workshop, -Jan-8 Nuclear partons e x e x B, Q c, b _ c, b _ Nuclear modifications NN interactions in QCD Nuclear gluons at large x Heavy quark production in DIS LO, NLO, sensitivity to gluons N, A G N, A (x) Charm measurements with EIC E. Chudakov, D. Higinbotham, C. Hyde, S. Furletov, Yu. Furletova, D. Nguyen N. Sato, M. Stratmann, M. Strikman, C. Weiss, JLab 6/7 LDRD Project [arxiv:6.856], [arxiv: ] Charm production rates at large x B Charm reconstruction with exclusive D s, jets Particle ID and vertex detection Impact on nuclear gluons Toward jets at EIC
2 Nuclear partons: Nucleon interactions A x i i j = Σ + Σ ij i?... Hard process, QCD factorization Nuclear matrix element A Twist- A -nucleon contribution N Twist- N nucleon PDF, Fermi motion -nucleon contribution N N Twist- N N nucleon interactions! Well-defined operator, scale dependence µ, matching with LQCD, nuclear EFT Physics questions How do interactions modify quarks/gluons with different x? What are the relevant distances in the N N interactions? What are the relevant intermediate states? Non-nucleonic DoF!
3 Nuclear partons: Nuclear modifications Nuclear gluon ratio R g (x).5.5 EPPS6 µ =.69 GeV A = shadowing enhancement? suppression? average distance interactions short distance interactions Status valence/sea quarks Talk Olness... x. < x <.8 Suppression? Interactions at short distances EMC effect cf. short-range N N correlations JLab 6/ GeV.5 < x <. Enhancement? Interactions at average distances Antishadowing x. Shadowing Coherent interactions enabled by diffraction Gribov 7s Suppression effect calculable Frankfurt, Strikman Guzey + Observed in J/ψ photoproduction on nuclei ALICE, CMS Suggests large antishadowing
4 Nuclear partons: Probing gluons 4 Determine nuclear gluon density at large x (.5)! Nuclear gluon probes ea/µa/νa Q dependence of F A,F LA + DGLAP ea/γa Heavy quark production direct probe! pa/ea/γa Jets? EIC capabilities Nuclear beams A = 8 CM energy s en 7 GeV Luminosity L 4 cm s Next-gen detectors with PID and vertex first ea collider coverage at large x B rare processes final states E. Chudakov et al., JLab 6/7 LDRD Project, see also: Aschenauer, Fazio, Lamont, Paukkunen, Zurita, PRD (7)
5 Heavy quark production: QCD description 5 e e T x x B, Q G ( x) h _ h F h (x B,Q ) = ax dx x xg(x) ˆF h g (x B/x,Q,m h,µ ) ˆF h g (...) = e h g Q /m h fun(x B/x,Q ) coefficient function a = + 4m h /Q sets limit of x integral Integrand of F (charm) [normalized] x B =., Q = GeV x B =., Q = GeV x QCD factorization γ T h h+x Inclusive heavy structure functions F h,fh L Differential cross section d 4 σ/dq dηd p T Photon-gluon fusion at LO O(e h g) Couples to gluons only Integrand localized above x ax B, probes gluons almost locally in x Witten 76; Babcock, Sivers 78; Vainshtein, Shifman, Zakharov 78; Gluck, Reya 79
6 Heavy quark production: Higher orders 6 Heavy quark production at NLO Sensitivity to light quarks at O(e h g ) LO photon-gluon fusion large at x >. gluons eg Theoretical uncertainties quantified Laenen, Riemersma, Smith Van Neerven, Harris 9+. Alekhin, Moch, Blümlein, Vogt, Kawamura et al. + quarks eg Perturbative stability LO NLO Good stability of F c with choice of effective LO scale Gluck, Reya, Stratmann 94 Rapidity, p T distributions more sensitive
7 Heavy quark production: HERA 7 cc _ σ red..5 H and ZEUS Q =.5 GeV Q =5 GeV Q =7 GeV Q = GeV Q =8 GeV Q = GeV c c, b b production in ep/γp Mostly x < Various reconstruction methods.5 Q =6 GeV Q = GeV Q = GeV Extensive tests of theory.5 Q =5 GeV Q =65 GeV HERA Q = GeV ABM9NNLO MS ABM9NLO MS Measurements of c D and b B fragmentation functions Simulation tools x HVQDIS LO/NLO cross secn + MC integration Harris, Smith 98 H + ZEUS summary. H. Abramowicz et al. EPJC 7 ()
8 EIC: Charm production rates at large x B 8 Number of events per bin Charm and DIS events in bins, 5 bins/decade in x, bin in Q Int. lumi = fb - Q > 5 GeV s en = GeV Q > GeV Total DIS Charm 4... x B Charm production rates drop rapidly at large x Charm production rates 5 at x B. (L int = fb ) Defines charm reconstruction efficiency needed for physics Charm/DIS ratio % at x. Defines charm reconstruction environment
9 EIC: Charm angle and momentum distributions 9 x ~. c e A e 5 GeV/N GeV 5 GeV/N GeV A c e Large-x c c pairs produced almost at rest in low-ratio collider Example: Gluon with x =. and 5 GeV/N Contrast with high-ratio collider! π/k produced at large angles, with typical momenta 5 GeV Favorable situation! Good PID and momentum resolution available in central detector Enables new methods of charm reconstruction
10 EIC: Charm reconstruction methods Exclusive D-meson decays Inclusive decays with displaced vertex Questions How well do the methods work at large x? What are the overall efficiencies and uncertainties? What detector performance is required? Simulations at different levels ) Theoretical estimates of reconstruction efficiency ) Model acceptance and PID performance, describe resolution effects through smearing of vertex and momentum distributions ) Tracking and vertexing based on schematic JLEIC detector model
11 EIC: Charm with exclusive D s π + D K π + π + π + π+ K K π + K + φ K D + D D + D s + Simple exclusive channel D + π + (slow)+(k π + ) D Used at HERA without PID. Efficiency < % EIC PID + vertex detection allow use of other exclusive channels D,D +,D + s Theoretical efficiency % summed over channels Fragmentation ratio f Branching ratio BR
12 EIC: Charm reconstruction with exclusive D s 8 6! no vertex no PID 5! no vertex 8% PID 9 8! no vertex % PID M K m K [GeV/c ] "##$ vertex no PID m K [GeV/c ] %&$ vertex no PID m K [GeV/c ] %&$ vertex 8% PID D Invariant mass spectrum of two charged tracks/mesons in sample of charm events with Q > GeV and x B >.5. PYTHIA 6 simulation, arbitrary normalization of event sample, no DIS background, vertex cut µm m K [GeV/c ] m K [GeV/c ] m K [GeV/c ] Example: D meson reconstruction using exclusive decay D K π + Level- simulation with mass/momentum and vertex smearing Also other channels Impact of PID and vertex detection
13 EIC: Charm reconstruction with inclusive modes )#%/)&,&-*)"5"$* 4)#%/).(-%!"#$ %&'($)*+,$%-.$&/ ).(-%)*&'- :;<)=>6 Projection on K axis (pos/neg) K momentum axis Primary vertex Secondary vertex Decay length 6".-7)"'$()8%/9".$&/ 4 5 vertex [µm] 4 5 vertex [µm] Decay length significance distribution Establish secondary vertex Project decay length on jet axis, positive/negative Identify D-meson decays through positive projection Used at HERA with vertex detector Use for charm at EIC Identified K from PID Efficiency up to %
14 EIC: Charm reconstruction efficiency 4 ) log(q Kin plot X, Q hxq Entries 689 Mean x.78 Mean y.59 5 Std Dev x.77 Std Dev y.66 log Q hxq_true Charm produced hxq_true Entries 465 Mean x.78 Mean y.59 5 Std Dev x.76 Std Dev y hxq_dall Reconstructed exclusive (sum) hxq_dall Entries 999 Mean x.77 Mean y.5 Std Dev x.76 Std Dev y log x log (X) hxq_ceff hxq_reck hxq_kceff Efficiency exclusive hxq_ceff Entries 9 Mean x.86 Mean y.99 Std Dev x.59 Std Dev y Kaons selected inclusive hxq_reck Entries 8966 Mean x.75 Mean y.5 Std Dev x.744 Std Dev y Efficiency inclusive (*) hxq_kceff Entries 58 Mean x.7877 Mean y.965 Std Dev x.44 Std Dev y Total efficiency estimated 5-7% exclusive, % inclusive Little kinematic variation in (x,q ) region of interest Systematic uncertainties? HERA % Both vertex detection and PID are essential for charm reconstruction
15 Charm impact: PDF reweighting 5 Ensemble χ { a} { a} PDF reweighting Method for quantifying impact of new (pseudo-) data on existing global fit Giele, Keller 98; NNPDF Collab Ball et al ; Paukkunen, Zurita 4; Sato et al 6 Represents existing fit as statistical ensemble, uses Bayes theorem Avoids costly re-fitting Widely used in PDF analysis, HEP Implemented for charm pseudodata from EIC Presently F c, can be extended to other observables Python code package, on github:
16 Charm impact: Large-x gluons 6 F A (charm) Pseudodata error Hessian error Q = x B 6 7 Nuclear gluon ratio g A (x) / [A g N (x)].5.5 present uncertainty EPS9 with EIC F (charm) µ = GeV A = 56.. x Charm pdeudodata F c (x,q ), assumed % total uncertainty, dominated by systematics, point-to-point Here EPS9, LO approximation. To be updated/refined Substantial impact on large x nuclear gluons See also: Aschenauer et al, PRD (7) Theoretical uncertainties to be estimated Nuclear final-state interactions vs. initial-state modifications Uncertainties of nuclear ratios
17 Summary 7 Nuclear PDFs as window on nucleon interactions in QCD New physics topic next step after nucleon structure Twist- operators clear connections with EFT, LQCD, phenomenology Open charm production at EIC can constrain large x nuclear gluons Natural measurement for medium-energy collider Particle ID and vertex detection essential for charm reconstruction Simulation tools available, can start detailed studies JLab LDRD Project LD7/6, Toward jet measurements at EIC New applications: G in ep, medium properties in ea Talk Petriello Theoretical questions: Jet definition at moderate momenta p few GeV Available tools can be used to simulate jet measurements at EIC Open for collaboration!
Gluons at high x in Nuclei at EIC
Gluons at high x in Nuclei at EIC in collaboration with: E. Chudakov, D. Higinbotham, C. Hyde, C. Weiss Jefferson Lab DNP 2015 Fall meeting, Santa Fe, NM Outline Motivation HERA and ZEUS experience EIC
More informationSpatial and Momentum Tomography of Hadrons and Nuclei INT-17-3 Program (2017) - Seattle
Spatial and Momentum Tomography of Hadrons and Nuclei INT7 Program (17) - Seattle s r, NC i Reduced Cross Section parton density Bj =.8, i=15 Bj =.13, i=14 7 1 5 6 5 4 3 Bj =.5, i=16 - HERAPDF. e + p NLO
More informationBeauty contribution to the proton structure function and charm results
and charm results Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Frascati E-mail: andrea.longhin@lnf.infn.it Recent heavy quark production results in deep inelastic scattering and photoproduction
More informationFrom JLab12 to EIC: QCD in nuclei
The EIC Science case: a report on the joint BL/IT/JLab program Gluons and the quark sea at high energies: distributions, polarization, tomography Institute for uclear Theory, University of Washington,
More informationMeasuring the gluon Sivers function at a future Electron-Ion Collider
Measuring the gluon Sivers function at a future Electron-Ion Collider Speaker: Liang Zheng Central China Normal University In collaboration with: E.C. Aschenauer (BNL) J.H.Lee (BNL) Bo-wen Xiao (CCNU)
More informationNeutron structure with spectator tagging at MEIC
Neutron structure with spectator tagging at MEIC C. Weiss (JLab), Users Group Workshop 2014, JLab, 03 Jun 14 Light ion physics with EIC e D pol. e p, n High energy process Forward spectators detected Physics
More informationNuclear GPDs and DVCS in Collider kinematics. Vadim Guzey. Theory Center, Jefferson Lab. Outline
Nuclear GPDs and DVCS in Collider kinematics Vadim Guzey Theory Center, Jefferson Lab Introduction Outline Nuclear PDFs Nuclear GPDs Predictions for DVCS Conclusions Introduction e(k ) Deeply Virtual Compton
More informationCoherent and Incoherent Nuclear Exclusive Processes
Coherent and Incoherent Nuclear Exclusive Processes Vadim Guzey Electron-Ion Collider Workshop: Electron-Nucleon Exclusive Reactions Rutgers University, March 14-15, 2010 Outline Coherent and incoherent
More informationPlans to measure J/ψ photoproduction on the proton with CLAS12
Plans to measure J/ψ photoproduction on the proton with CLAS12 Pawel Nadel-Turonski Jefferson Lab Nuclear Photoproduction with GlueX, April 28-29, 2016, JLab Outline Introduction J/ψ on the proton in CLAS12
More informationPolarized deuterium physics with EIC C. Weiss (JLab), Tensor Polarized Solid Target Workshop, JLab, 11 Mar 14
Polarized deuterium physics with EIC C. Weiss (JLab), Tensor Polarized Solid Target Workshop, JLab, 11 Mar 14 1 e e x, 0000000 1111111 D pol. Q 2 X p, n Electron-Ion Collider overview Design specifications
More informationHigh-energy ea scattering. Spectator nucleon tagging. Future facilities. Energy, luminosity, polarization. Physics objectives with light nuclei
High-energy nuclear physics with spectator tagging A. Deshpande, D. Higinbotham, Ch. Hyde, S. Kuhn, M. Sargsian, C. Weiss Topical Workshop, Old Dominion U., 9 11 March 015 High-energy ea scattering e e
More informationLHCb results in proton-nucleus collisions at the LHC
LHCb results in proton-nucleus collisions at the LHC PANIC August 28, 2014 on behalf of the LHCb collaboration Outline Motivation LHCb Detector Beam configurations Measurements J/Ψ production Υ production
More informationPANIC August 28, Katharina Müller on behalf of the LHCb collaboration
Measurements with electroweak bosons at LHCb PANIC August 28, 2014 on behalf of the LHCb collaboration Outline LHCb detector Measurements with electroweak bosons Motivation Z production Z plus jets, Z
More informationMeasurements of charm and beauty proton structure functions F2 c c and F2 b b at HERA
Measurements of charm and beauty proton structure functions F c c and F b b at HERA Vladimir Chekelian MPI for Physics, Germany E-mail: shekeln@mail.desy.de Inclusive charm and beauty production is studied
More informationMEIC polarized deuteron R&D
MEIC polarized deuteron R&D C. Weiss, JLab Theory! FY14/15 LDRD Project Physics potential of polarized light ions with EIC@JLab 1 Overview Physics potential of polarized light ions with EIC@JLab! FY14/15
More informationDiffractive dijet photoproduction in UPCs at the LHC
Diffractive dijet photoproduction in UPCs at the LHC V. Guzey Petersburg Nuclear Physics Institute (PNPI), National Research Center Kurchatov Institute, Gatchina, Russia Outline: l Diffractive dijet photoproduction
More informationBeauty jet production at HERA with ZEUS
DESY and University of Hamburg E-mail: mlisovyi@mail.desy.de wo recent measurements of beauty production in deep inelastic ep scattering with the detector are presented. In the first analysis, beauty production
More informationHelicity: Experimental Status. Matthias Grosse Perdekamp, University of Illinois
Helicity: Experimental Status Matthias Grosse Perdekamp, University of Illinois Content o The Experimental Effort o Quark and Sea Quark Helicity è DIS, SIDIS, pp è new FFs for global analysis è results
More informationSummary of subtopic Imaging QCD Matter : Generalized parton distributions and exclusive reactions
Summary of subtopic Imaging QCD Matter : Generalized parton distributions and exclusive reactions of weeks 8 and 9 of the INT program Gluons and the quark sea at high energy: distributions, polarization,
More informationNNLO PDFs in 3 flavor scheme and collider data
NNLO PDFs in 3 flavor scheme and collider data S.Alekhin (DESY & IHEP, Protvino) In collaboration with J.Blümlein and S.Moch INT, Seattle, 19 Oct 2010 The ABKM fit ingredients DATA: QCD: DIS NC inclusive
More informationALICE results on vector meson photoproduction in ultraperipheral p-pb and Pb-Pb collisions
ALICE results on vector meson photoproduction in ultraperipheral p-pb and Pb-Pb collisions Evgeny Kryshen (Petersburg Nuclear Physics Institute, Russia) for the ALICE collaboration INT workshop INT-17-65W
More informationHeavy ion physics at LHCb
J/ψ in ppb, 8 ev D in ppb, 5 ev Λ+ c in ppb, 5 ev Heavy flavour with SMOG data Conclusion Heavy ion physics at E milie Maurice on behalf of the collaboration ICFNP 25th August 217, Kolymbari, Creta August
More informationFlavor Decomposition of Nucleon Spin via polarized SIDIS: JLab 12 GeV and EIC. Andrew Puckett Los Alamos National Laboratory INT 09/24/2010
Flavor Decomposition of Nucleon Spin via polarized SIDIS: JLab 12 GeV and EIC Andrew Puckett Los Alamos National Laboratory INT 09/24/2010 Outline Nucleon Structure Nucleon spin structure Flavor decomposition
More informationStudies of the diffractive photoproduction of isolated photons at HERA
Studies of the diffractive photoproduction of isolated photons at HERA P. J. Bussey School of Physics and Astronomy University of Glasgow Glasgow, United Kingdom, G12 8QQ E-mail: peter.bussey@glasgow.ac.uk
More informationNext-generation nuclear physics with JLab12 and EIC
Next-generation nuclear physics with JLab12 and EIC Topical Workshop, Florida International University, 10 13 Feb 2016 W. Brooks, R. Dupre, Ch. Hyde, M. Sargsian, C. Weiss (Organizers) Welcome! Physics
More information3-D Imaging and the Generalized Parton Distribution Program at an Electron Ion Collider
Workshop on Precision Radiative Corrections for Next Generation Experiments 6 9 May 6, Jefferson Lab, Newport News VA 3-D Imaging and the Generalized Parton Distribution Program at an Electron Ion Collider
More informationerhic: Science and Perspective
erhic: Science and Perspective Study of the Fundamental Structure of Matter with an Electron-Ion Collider A. Deshpande, R. Milner, R. Venugopalan, W. Vogelsang hep-ph/0506148, Ann. Rev. Nucl. Part. Sci.
More informationRecent STAR Jet Results of the High-Energy Spin Physics Program at RHIC
Recent STAR Jet Results of the High-Energy Spin Physics Program at RHIC Daniel L. Olvitt Jr. Temple University E-mail: daniel.olvitt@temple.edu The production of jets from polarized proton+proton collisions
More informationPoS(ICHEP 2010)170. D +, D 0 and Λ + c production in deep inelastic scattering at HERA
D +, D and Λ + c production in deep inelastic scattering at HERA ab a Deutsches Elektronen-Synchrotron DESY, Notkestr. 85, D-67 Hamburg, Germany b University of Hamburg, Institute of Experimental Physics,
More informationA M Cooper-Sarkar on behalf of ZEUS and H1 collaborations
α s (M Z ) and charm quark mass determination from HERA data International Workshop Determining the Fundamental Parameters of QCD IAS Singapore March 2013 A M Cooper-Sarkar on behalf of ZEUS and H1 collaborations
More informationExclusive J/ψ production and gluonic structure
Exclusive J/ψ production and gluonic structure C. Weiss (JLab), Exclusive Meson Production Workshop, JLab, 22 24 Jan 25 Quarkonium size and structure Parametric: Dynamical scales Numerical: Potential models,
More informationa medium energy collider taking nucleon structure beyond the valence region
EIC@JLAB a medium energy collider taking nucleon structure beyond the valence region Tanja Horn INT09-43W, Seattle, WA 19 October 2009 Tanja Horn, CUA Colloquium 1 A high-luminosity EIC at JLab Use CEBAF
More informationPoS(EPS-HEP2015)309. Electroweak Physics at LHCb
European Organisation for Nuclear Research (CERN), Switzerland E-mail: william.barter@cern.ch LHCb s unique forward acceptance allows for complementary measurements of electroweak boson production to those
More informationPrecision Studies of the Proton s Helicity Structure at an EIC
Bloomington, Aug 20 th, 2012 Precision Studies of the Proton s Helicity Structure at an EIC Marco Stratmann talk largely based on E.C. Aschenauer, R. Sassot, MS: arxiv:1206.6041 marco@bnl.gov open questions
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 informationFuture prospects of di-jet production at. forward rapidity constraining Δg(x) at low x in. polarized p+p collisions at RHIC
Future prospects of di-jet production at forward rapidity constraining Δg(x at low x in polarized p+p collisions at RHIC Bernd Surrow QCD Evolution Workshop - QCD! Santa Fe, NM, May, Bernd Surrow Outline
More informationStructure Functions and Parton Distribution Functions at the HERA ep Collider
Structure Functions and Parton Distribution Functions at the HERA ep Collider by Chris Targett Adams (University College London) on behalf of the ZEUS and H1 collaborations. Moriond QCD, 16/03/2005 Contents
More informationPhysics at HERA. Summer Student Lectures August Katja Krüger Kirchhoff Institut für Physik H1 Collaboration
Physics at HERA Summer Student Lectures 18 + 19 August 28 Kirchhoff Institut für Physik H1 Collaboration email: katja.krueger@desy.de Overview Part 2 Exotics Jet Physics Cross Sections Strong Coupling
More informationProton longitudinal spin structure- RHIC and COMPASS results
Proton longitudinal spin structure- RHIC and COMPASS results Fabienne KUNNE CEA /IRFU Saclay, France Gluon helicity PHENIX & STAR: pp jets, pp p 0 COMPASS g 1 QCD fit + DG direct measurements Quark helicity
More informationMeasurement of the jet production properties at the LHC with the ATLAS Detector
Measurement of the jet production properties at the LHC with the ALAS Detector Stanislav okar Comenius University, Bratislava On behalf of the ALAS collaboration Different features of the jet production
More informationParton propagation and energy loss at an EIC
Parton propagation and energy loss at an EIC Alberto Accardi Hampton U. and Jefferson Lab POETIC 7 Temple U., 14 November 2016 With many thanks to M.Baker, W.Brooks, V.Morozov, I.Vitev for help preparing
More informationLongitudinal Double Spin Asymmetry in Inclusive Jet Production at STAR
Longitudinal Double Spin Asymmetry in Inclusive Jet Production at STAR Katarzyna Kowalik for the STAR Collaboration Lawrence Berkeley National Laboratory, Berkeley, California 94720 Abstract. This contribution
More informationProbing nucleon structure by using a polarized proton beam
Workshop on Hadron Physics in China and Opportunities with 12 GeV Jlab July 31 August 1, 2009 Physics Department, Lanzhou University, Lanzhou, China Probing nucleon structure by using a polarized proton
More informationJAMboree. Theory Center Jamboree Jefferson Lab, Dec 13, Pedro Jimenez Delgado
JAMboree Theory Center Jamboree Jefferson Lab, Dec 13, 2013 Introduction Hadrons composed of quarks and gluons scattering off partons Parton distribution functions Plausible at high energies (from GeV):
More informationOpportunities in low x physics at a future Electron-Ion Collider (EIC) facility
1 Opportunities in low x physics at a future Electron-Ion Collider (EIC) facility Motivation Quantum Chromo Dynamics Proton=uud Visible Universe Galaxies, stars, people, Silent Partners: Protons & Neutrons
More informationCharm and Beauty Structure of the proton
International Conference Heavy Quarks and Leptons München, 16-20 October 2006 Riccardo Brugnera Padova University and INFN on behalf of the H1 and ZEUS Collaborations Charm and Beauty Structure of the
More informationσ tot (J/ψN) 3 4 mb Mark Strikman, PSU Jlab, March 26, 2011
J/ψ exclusive photoproduction off protons and nuclei near threshold Mark Strikman, PSU Application of VDM: σ V DM tot (J/ψN) 1 mb, σtot VDM (Ψ N) m2 (J/ψN) σ VDM tot J/ψ m 2 Ψ though r 2 Ψ r 2 J/ψ 4 QCD:
More informationQCD and High Energy Hadronic Interactions. Northwestern University. Heidi Schellman. Experimental Summary. 40 th Rencontres de Moriond
Experimental Summary 40 th Rencontres de Moriond QCD and High Energy Hadronic Interactions Heidi Schellman Northwestern University Thank you To the conference organizers The secretariat The Hotel Planibel
More informationThe LHC p+pb run from the nuclear PDF perspective
Department of Physics, University of Jyväskylä, P.O. Box 35, FI-40014 University of Jyväskylä, Finland Helsinki Institute of Physics, University of Helsinki, P.O. Box 64, FI-00014, Finland E-mail: hannu.paukkunen@jyu.fi
More information(High-x) physics at an Electron-Ion Collider (EIC)
(High-x) physics at an Electron-Ion Collider (EIC) Pawel Nadel-Turonski Jefferson Lab 4 th International Workshop on Nucleon Structure at Large Bjorken x Rome, Italy, November 17-21, 2014 EIC physics program
More informationHeavy Flavour physics at HERA
A taste of Heavy Flavour physics at HERA Luis Labarga (University Autonoma Madrid), on behalf of OUTLINE: the H1 and ZEUS Collaborations - Basics of HERA and HF production at HERA - Current theoretical
More informationHadronization with JLab 6/12 GeV
Hadronization with JLab 6/12 GeV Next generation nuclear physics with JLab12 and EIC Florida International University February 10-13th, 2016 Lamiaa El Fassi (On behalf of EG2 and CLAS Collaborations) Outline
More informationHeavy flavour production at RHIC and LHC
Heavy flavour production at RHIC and LHC Gian Michele Innocenti 1, 1 Massachusetts Institute of Technology Abstract. In this proceedings, I present selected experimental results on heavy-flavour production
More informationQuarkonia and heavy-quark production in proton and nuclear collisions at the LHC
Quarkonia and heavy-quark production in proton and nuclear collisions at the LHC Michael Schmelling / MPI for Nuclear Physics Introduction Double Parton Scattering Cold Nuclear Matter Effects Quark Gluon
More informationCharm photoproduction at HERA
Charm photoproduction at HERA David Meer Doktorandenseminar 2003 Contents 2 Heavy quark production Physical motivation Jets Vertexing Event selection Monte Carlo results A first look at data Next analysis
More informationSusanna Costanza. (Università degli Studi di Pavia & INFN Pavia) on behalf of the ALICE Collaboration
(Università degli Studi di Pavia & INFN Pavia) on behalf of the ALICE Collaboration 102 Congresso della Società Italiana di Fisica Padova, 26-30 settembre 2016 Outline Heavy flavour physics in ALICE The
More informationProbing the small-x regime through photonuclear reactions at LHC
Probing the small-x regime through photonuclear reactions at LHC 1/ 26 Probing the small-x regime through photonuclear reactions at LHC G.G. Silveira gustavo.silveira@ufrgs.br High Energy Physics Phenomenology
More informationHEAVY QUARKS FROM PHOTOPRODUCTION (AND DIS)
HEAVY QUARKS FROM PHOTOPRODUCTION (AND DIS) INT 20, Seattle EIC workshop Week 6, Oct. 22, 20 H. Spiesberger based on work in collaboration with A. Kadeer, B. Kniehl, G. Kramer, C. Pisano, I. Schienbein,
More informationQCD Measurements at HERA
QCD Measurements at HERA Armen Bunyatyan, Max-Planck-Institut für Kernphysik, Heidelberg, Germany Yerevan Physics Institute, Armenia November, 7 Abstract A review is presented of recent results in QCD
More informationGlobal QCD Analysis of Nucleon Structure: Progress and Prospects
Global QCD Analysis of Nucleon Structure: Progress and Prospects Recent Past (say, up to DIS2002): Experiment: More precision DIS measurements (mainly HERA) and Tevatron inclusive jet production (CDF,
More informationW, Z and top production measurements at LHCb
1 W, Z and top production measurements at LHCb Lorenzo Sestini, on behalf of the LHCb collaboration. Universitá di Padova e INFN E-mail: lorenzo.sestini@cern.ch The LHCb experiment offers a complementary
More informationHeavy Ion Physics at ATLAS, CMS and LHCb
Heavy Ion Physics at ALAS, CMS and Michael Schmelling - MPI for Nuclear Physics on behalf of the collaborations Outline Introduction Quarkonia production Correlation studies Ultra-peripheral collisions
More informationPoS(DIS2017)208. Nuclear PDF studies with proton-lead measurements with the ALICE detector
Nuclear PDF studies with proton-lead measurements with the ALICE detector a,b for the ALICE Collaboration a Institute for Subatomic Physics, Department for Physics and Astronomy and EMMEφ, Faculty of Science,
More informationRecent results from relativistic heavy ion collisions
Recent results from relativistic heavy ion collisions Camelia Mironov MI at the LHC A teaser talk with very few (though recent) results LHC Heavy-Ion (HI) Program Collision systems Center of mass colliding
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 informationIntrinsic Heavy Quarks
Intrinsic Heavy Quarks Ingo Schienbein UGA/LPSC Laboratoire de Physique Subatomique et de Cosmologie Many thanks to my long term collaborators on heavy quark related topics: Fred Olness, Aleksander Kusina,
More informationCurrent status of npdfs and future facilities
Current status of npdfs and future facilities Carlota Andrés Universidade de Santiago de Compostela QCD evolution 2017, Jefferson Lab 1 / 24 Outline Introduction Pre-LHC global analysis Post-LHC run I
More informationStatus of high-x section
Status of high-x section A. Kusina, I. Schienbein Université Grenoble Alpes/LPSC Grenoble Laboratoire de Physique Subatomique et de Cosmologie AFTER@LHC Workshop Orsay, June 9-3, 7 Outline Drell Yan lepton
More informationarxiv: v1 [nucl-ex] 3 Sep 2018
A Plan for Electron Ion Collider in China arxiv:89.448v [nucl-ex] 3 Sep 28 Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 73, China E-mail: xchen@impcas.ac.cn One of the frontier research
More informationPhenomenology of prompt photon production. in p A and A A collisions
Phenomenology of prompt photon production in p A and A A collisions François Arleo LAPTH, Annecy LPT Orsay April 2011 Francois Arleo (LAPTH) Prompt γ in p A and A A collisions LPT Orsay April 2011 1 /
More informationThe Electron-Ion Collider at BNL: Capabilities and Physics Highlights
Hadron 2011 Munich 1 The Electron-Ion Collider at BNL: Capabilities and Physics Highlights D. Leinweber J.H. Lee Brookhaven National Laboratory Outline Why do we need electron-ion collider What can we
More informationPoS(ICHEP2012)300. Electroweak boson production at LHCb
Physik-Institut der Universität Zürich, Switzerland. E-mail: jonathan.anderson@cern.ch The electroweak boson production cross-sections have been measured in the forward region using s = 7 TeV proton-proton
More informationProton PDFs constraints from measurements using the ATLAS experiment
Nuclear and Particle Physics Proceedings 00 (08) 6 Nuclear and Particle Physics Proceedings Proton PDFs constraints from measurements using the eperiment F. Giuli a a University of Oford, Keble Road, OX
More informationusing photons in p A and A A collisions
Probing parton densities and energy loss processes using photons in p A and A A collisions François Arleo LAPTH, Annecy High p Probes of High Density QCD May 2011 Francois Arleo (LAPTH) Prompt γ in p A
More informationHeavy-flavor production in pp and Pb Pb collisions at LHC with ALICE
Heavy-flavor production in pp and Pb Pb collisions at LHC with ALICE Kai Schweda 1 on behalf of the ALICE Collaboration Physikalisches Institut der Universität Heidelberg, Philosophenweg 12, D-69120 Heidelberg,
More informationNucleon Spin Structure: Overview
Nucleon Spin Structure: Overview Jen-Chieh Peng University of Illinois at Urbana-Champaign Workshop on Spin Structure of Nucleons and Nuclei from Low to High Energy Scales EINN2015, Paphos, Cyprus, Nov.
More informationGlobal QCD Analysis of Fragmentation Functions and Possible Medium Modifications
October 23rd, 2009 04-Aug-2009 INT, Seattle Global QCD Analysis of Fragmentation Functions and Possible Medium Modifications Marco Stratmann U Regensburg/U Wurzburg plan of the talk I. quick introduction
More informationProbing Nuclear Color States with J/Ψ and φ
Probing Nuclear Color States with J/Ψ and φ Michael Paolone Temple University Next Generation Nuclear Physics with JLab12 and the EIC FIU - Miami, Florida February 12th 2016 J/Ψ and φ experiments at a
More informationPoS(Photon 2013)004. Proton structure and PDFs at HERA. Vladimir Chekelian MPI for Physics, Munich
MPI for Physics, Munich E-mail: shekeln@mail.desy.de The neutral and charged current deep-inelastic ep scattering cross sections are measured in the H and ZEUS eperiments at HERA (99-7), with an electron
More informationF c 2 measurements at HERA. Katerina Lipka
F c measurements at HERA Katerina Lipka New trends in HERA Physics, Ringberg 8 Charm production at HERA: why now? HERA I : PDF central measurement of HERA HERA I F c / F Q = GeV PDF obtained from the fits
More informationQCD Collinear Factorization for Single Transverse Spin Asymmetries
INT workshop on 3D parton structure of nucleon encoded in GPD s and TMD s September 14 18, 2009 QCD Collinear Factorization for Single Transverse Spin Asymmetries Iowa State University Based on work with
More informationDiffractive production of isolated photons with the ZEUS detector at HERA
Diffractive production of isolated photons with the ZEUS detector at HERA On behalf of the ZEUS Collaboration Tel Aviv University, Tel Aviv, Israel levyaron@post.tau.ac.il The photoproduction of isolated
More informationConference Report Mailing address: CMS CERN, CH-1211 GENEVA 23, Switzerland
Available on the CMS information server CMS CR 212/178 The Compact Muon Solenoid Experiment Conference Report Mailing address: CMS CERN, CH211 GENEVA 23, Switzerland 212//9 Measurement of isolated photon
More informationMeasuring the gluon Sivers function at a future Electron-Ion Collider
Measuring the gluon Sivers function at a future Electron-Ion Collider Speaker: Liang Zheng Central China Normal University In collaboration with: E.C. Aschenauer (BNL) J.H.Lee (BNL) Bo-wen Xiao (CCNU)
More informationJets and Diffraction Results from HERA
Jets and Diffraction Results from HERA A. Buniatyan DESY, Notkestrasse 5, 7 Hamburg, Germany for the H and ZEUS Collaborations he latest results on precision measurements of jet and diffractive cross sections
More informationCT14 Intrinsic Charm Parton Distribution Functions from CTEQ-TEA Global Analysis
CT14 Intrinsic Charm Parton Distribution Functions from CTEQ-TEA Global Analysis Sayipjamal Dulat On behalf of the CTEQ-TEA collaboration 7th Workshop of the APS Topical Group on Hadronic Physics Washington
More informationPHENIX measurements of bottom and charm quark production
Journal of Physics: Conference Series PAPER OPEN ACCESS PHENIX measurements of bottom and charm quark production To cite this article: Timothy Rinn and PHENIX Collaboration 2018 J. Phys.: Conf. Ser. 1070
More informationColin Jessop. University of Notre Dame
Colin Jessop University of Notre Dame Test the evolution of QCD to higher energies ( and lower x) Search for new particles with Quarks, gluons and photons in Final state Jet production is dominant process
More informationExperimental Summary 40 th Rencontres de Moriond QCD and High Energy Hadronic Interactions. Heidi Schellman Northwestern University
Experimental Summary 40 th Rencontres de Moriond QCD and High Energy Hadronic Interactions Heidi Schellman Northwestern University Thank you To the conference organizers The secretariat The Hotel Planibel
More informationPoS(EPS-HEP 2013)455. HERAFitter - an open source QCD fit framework. Andrey Sapronov. on behalf of theherafitter team
on behalf of theherafitter team JINR (Joint Institute for Nuclear Research, Dubna) E-mail: sapronov@cern.ch The presented QCD analysis framework, HERAFitter, is an open source PDF fitting tool developed
More informationSTAR Open Heavy Flavor Measurements
STAR Open Heavy Flavor Measurements Xin Dong Lawrence Berkeley National Laboratory Physics Goals Mass Dependence of DE Au+Au@200GeV, 0-5% Brownian motion CUJET drag fluctuations PRL 108 (2012) 022301 Diffusion
More informationReview of LHCb results on MPI, soft QCD and diffraction
Review of LHCb results on MPI, soft QCD and diffraction Marcin Kucharczyk on behalf of LHCb collaboration HNI Krakow EDS Blois 2015, Borgo (Corse), 30.06.2015 Outline LHCb - general purpose forward experiment
More informationNucleon and nuclear structure at the EIC
Nucleon and nuclear structure at the EIC Alberto Accardi Hampton U. and Jefferson Lab Universidad Técnica Federico Santa María Valparaíso, CHILE 4-8 March 2013 Overview Protons and Deuterons: partons at
More informationMEIC Physics. Tanja Horn for the MEIC group. Jlab Users Meeting
MEIC Physics Tanja Horn for the MEIC group Jlab Users Meeting The Structure of the Proton Naïve Quark Model: proton = uud (valence quarks) QCD: proton = uud + uu + dd + ss + The proton sea has a non-trivial
More information2. HEAVY QUARK PRODUCTION
2. HEAVY QUARK PRODUCTION In this chapter a brief overview of the theoretical and experimental knowledge of heavy quark production is given. In particular the production of open beauty and J/ψ in hadronic
More informationResults on charmonium and charmonium-like production from the LHC
XIV International Conference on Hadron Spectroscopy München, 13-17 June 2011 Results on charmonium and charmonium-like production from the LHC Yuanning Gao (Tsinghua University) On behalf of the ALICE,
More informationAsmita Mukherjee Indian Institute of Technology Bombay, Mumbai, India
. p.1/26 Sivers Asymmetry in e + p e + J/ψ + X Asmita Mukherjee Indian Institute of Technology Bombay, Mumbai, India Single spin asymmetry Model for J/ψ production Formalism for calculating the asymmetry
More informationRecent QCD results from ATLAS
Recent QCD results from ATLAS PASCOS 2013 Vojtech Pleskot Charles University in Prague 21.11.2013 Introduction / Outline Soft QCD: Underlying event in jet events @7TeV (2010 data) Hard double parton interactions
More informationPhoto-production of vector mesons in 2.76 TeV ultra-peripheral Pb+Pb collisions at ALICE. Daniel Tapia Takaki. On behalf of the ALICE Collaboration
Photo-production of vector mesons in 2.76 TeV ultra-peripheral Pb+Pb collisions at ALICE On behalf of the ALICE Collaboration Rencontres du Viet Nam: 14th Workshop on Elastic and Diffractive Scattering
More informationHeavy intrinsic quarks in hadrons: theory, constraints, & consequences
Heavy intrinsic quarks in hadrons: theory, constraints, & consequences An Overview Susan Gardner Department of Physics and Astronomy University of Kentucky Lexington, KY 7th Workshop of the APS Topical
More information