Quarkonium Production at J-PARC
|
|
- Claud Rodger Shields
- 5 years ago
- Views:
Transcription
1 Quarkonium Production at J-PARC Jen-Chieh Peng University of Illinois at Urbana-Champaign J-PARC Meeting for Spin and Hadron Physics RIKEN, April 7-8, 008 Outline Quarkonium Production at J-PARC with Unpolarized Proton Beam Quarkonium Production at J-PARC with Polarized Beam and Target Calculations of charm and J/Ψ production from Yuan Feng 1
2 Physics with quarkonium production at J-PARC J / Ψ production with unpolarized proton beam: J / Ψ production mechanism at J-PARC energies -- is it dominated by quark-antiquark annihilation or gluon-gluon fusion? Nuclear dependence of J / Ψ production Antiquark distributions in nucleons and nuclei Polarization of J / Ψ and Ψ J / Ψ Production with polarized beam/target: Sivers quark distribution with single-spin asymmetry AN Sea-quark polarization with double-spin asymmetry ALL Quark transversity distributions with double-spin asymmetry A TT
3 J/Ψ Production at J-PARC Energies Very few data for J/Ψ production at GeV 4 GeV/c at CERN-PS 70 GeV/c at IHEP Schub et al., Fermilab E789, PR D5 (1995) 1307 σ B τ ( + / Ψ+ ) = ; where τ = / p N J x Ae M s 3
4 Color-Evaporation Model for J/Ψ Production dσ dx J ψ = F τdτ H ( x, x ; m )/( x + 4 τ ) wher / ( / ) F τ1 = s and x = x x e τ m / τ F PT 1 1 1/ F CEM calculations versus data τ : QQ threshold, 1 τ : open charm threshold H PT ( x, x 1 1 ; m ) G ( x ) G ( x ) σ ( gg QQ; m P T + + Gluon-gluon fusion = i i i i { qp( x1) qt( x) qp( x1) qt( x)} σ ( qq QQ; m ) i= u, d, s ) Quark-antiquark annihilation Schuler, Vogt, PL B 387(1996)181 4
5 J/Ψ Production at 30 GeV At 800 GeV, J/Ψ production is dominated by gluon-gluon fusion At 30 GeV J/Ψ production is dominated by quark-antiquark annihilation J/Ψ production at 30 GeV is sensitive to quark and antiquark distributions 5
6 Counts/0.1 GeV/c Evidence that gluon-gluon fusion is the dominant mechanism at 800 GeV 800 GeV σ( p + d μ + μ X ) / σ( p + p μ + μ X ) J/ψ ψ Mass (GeV/c ) pd Drell J ϒ / Ψϒ, : ϒ ϒ Yan: σ σ pd σ pd /σ pp FNAL E866/NuSea Drell-Yan Drell-Yan J/ψ ϒ(1S) ϒ(S) MRST CTEQ4M CTEQ5M CTEQ4M (d _ - u _ = 0) 1% Systematic error not shown GRV pp 1 / σ [1 + d( x)/ u( x)] pp 1 / σ [1 + g ( x)/ g ( x)] n x p 6
7 Evidence that gluon-gluon fusion is the dominant mechanism at 800 GeV 800 GeV σ( p + d μ + μ X ) / σ( p + p μ + μ X ) E866 collaboration: PRL 100 (008) Drell J / Ψϒ, : Yan: σ σ pd pd pp 1 / σ [1 + d( x)/ u( x)] pp 1 / σ [1 + gn( x)/ gp( x)] 7
8 Is quark-antiquark annihilation the dominant mechanism at 30 GeV? u d d = u σ ( p+ d J / Ψ ) / σ ( p+ p J / Ψ) test for the production mechanism is a sensitive J/Ψ production at J-PARC could be sensitive to quark/antiquark distributions! 8
9 Expected J/Ψ yields and kinematic coverage J/Ψ yields for a two-month p+d run at 30 GeV Broad coverage in x F, x 1, x, p T Expected total number of J/Ψ events: ~ 8x protons/spill 50-cm long liquid deuterium target Assume 50 percent efficiency 9
10 Nuclear Dependence of J/Ψ Production at 30 GeV σ( p+ A) = A α σ( p+ N) 30 GeV data would provide an interesting test for the x F -scaling in J/ψ production Very few data exist for negative x F region 10
11 Polarization of J/ Ψ and Ψ Decay angular distribution in the quarkonium rest frame dσ 1+ λcos θ dω Transverse : σt ; helicity: ± 1; λ = 1 Longitudinal : σl ; helicity: 0; λ = -1 Unpolarized : σt=σl ; helicity: 0, ± 1; λ = 0 σt σl λ = = (1 σl / σt) / (1+ σl / σt) σ + σ σl / σt depends on the color - spin states of the QQ pair : 3 (1) 1 (8) 3 (8) 3 (8) State: S1 S0 PJ S1 σ / σ : 1/3.4 1/ 1/6 0/1 L T T L Polarization of QQ is sensitive to the production mechanism 11
12 Polarization of J/Ψ E866 p + Cu J/Ψ + x (beam dump) s 1/ = 38.8 GeV (PRL 91 (003) 1180,hep-ex/030801, T. Chang et al.) Typical dimuon mass spectrum for various xf, pt, cosθ bins dσ/dω ~ 1 + λcos θ (extraction of λ for various x F, p T bins) 1
13 Polarization of J/Ψ in p + Cu Collision dσ/dω ~ 1 + λ cos θ (λ=1: transversely polarized, λ = -1: longitudinally polarized λ = 0, unpolarized) E866 data hep-ex/ λ is small, but nonzero λ becomes negative at large x F No strong p T dependence for λ Polarization of Ψ has never been measured 13
14 Polarization of Υ(1S),Υ(S+3S) p + Cu Υ + x (E866 beam-dump data) Dimuon mass spectrum Decay angular distributions Υ(1S) Υ(S+3S) Brown et al. PRL 86, 59 (001) 14
15 Polarization of Υ(1S),Υ(S+3S) p + Cu Υ + x (E866 beam-dump data) λ λ λ for D-Y, Υ(1S), Υ(S+3S) p T (GeV) x F Brown et al. PRL 86, 59 (001) D-Y is transversely polarized Υ(1S) is slightly polarized (like J/Ψ) Υ(S+3S) is transversely polarized! Analysis of Y polarization in p+p and p+d is underway (nuclear dependence?) Preliminary result shows ψ is also transversely polarized! 15
16 Polarized proton beam at J-PARC? Polarized proton beam at J-PARC with Polarized H source RF dipole at 3 GeV RCS Two 30% partial snakes at 50 GeV Main Ring 30 GeV 50 GeV pc CNI Polarimeter Pol. H - Source Extracted Beam Polarimeter Rf Dipole 180/400 MeV Polarimeter 5-30% Helical Partial Siberian Snakes 16
17 Single-spin asymmetry in polarized p-p collision Large single-spin asymmetry in light meson production in polarized p-p: Sivers, Collins, and/or higher-twist effect? FNAL-E704 E lab = 00 GeV RHIC-STAR s = 00 GeV What is the single-spin asymmetry for J/Ψ production? 17
18 Single-spin asymmetry in polarized p-p at J-PARC Single-spin asymmetry (A N ) can probe Sivers function Sivers function in Drell-Yan is expected to have a sign opposite to that in DIS A DY N = q q e f ( x ) f ( x ) q 1T q q q e f ( x ) f ( x ) q q q q q -J/Ψ production could also probe the Sivers function - Much higher statistics could be obtained in J/Ψ production 18
19 Double-spin asymmetry in polarized p-p at J-PARC Double-spin asymmetry (A LL ) with longitudinally polarized beam/target in Drell-Yan (and J/Ψ) probe Sea-Quark polarization D-Y A LL at 50 GeV G-S A DY LL GRSV = a e [ Δq ( x ) Δ q ( x ) +Δq ( x ) Δq ( x )] a a 1 a a 1 a a e [ q ( x ) q ( x ) + q ( x ) q ( x )] a a 1 a a 1 a -J/Ψ production could also probe the Sea-Quark polarization - Much higher statistics could be obtained in J/Ψ production 19
20 Double-spin asymmetry in polarized p-p at J-PARC Double-spin asymmetry (A TT ) with transversely polarized beam/target in Drell-Yan (and J/Ψ) probe quark transversity distribution PHENIX, s 1/ =00GeV, 30 pb -1 5 A TT (M) [%] NLO LO M [GeV] A TT = aˆ TT q q eh( x, M ) h ( x, M ) q q q eqx (, M ) q( x, M ) q 1 -J/Ψ production could also probe the transversity distribution - Much higher statistics could be obtained in J/Ψ production 0
21 Summary A rich physics program in J/Ψ production can be carried out at the J-PARC using primary proton beam. J/Ψ production at J-PARC energies is expected to be dominated by quark-antiquark annihilation, similar to Drell-Yan but with much larger cross sections. An extensive and exciting program in spin physics can be pursued if polarized proton and polarized targets are available at J-PARC. 1
22 Following slides are provided by Feng Yuan
23 Another example: Heavy flavor production Heavy quarkonium production (gg channel) ep scattering No SSA in color-singlet model Final state interaction in color-octet model pp scattering Only initial state interaction in color-singlet ISI and FSI cancel out in color-octet Open charm or beauty Different SSAs for charm and anti-charm 4/10/
24 Color-singlet model Final state interactions with quark and anti-quark cancel out each other, no SSA in color-singlet model 4/10/
25 Color-octet model Final state interactions can be summarized into a gauge link to infinity, nonzero SSA 4/10/
26 pp scattering Color-singlet model: only initial state interaction, non-zero SSA Color-octet model: initial and final state interactions cancel out, no SSA 4/10/
27 7
28 J/Psi Production at lower energy (JPARC or FAIR) Quark-channel dominates Color-singlet: only initial state interaction contributes, -1/Nc relative to Drell-Yan Color-octet: both initial and final state interactions contribute, -(Nc^+1)/Nc relative to DY 4/10/008 DPN Meeting
29 JPARC prediction Final A_N depends on the weight of the quark-channel contribution Proportional to the sum of u- and d- quark Sivers function: fitted to HERMES data, Vogelsang-Yuan 05 4/10/008 DPN Meeting
30 Heavy quark SSA ISI: contribute to quark and anti-quark ~1/4Nc FSI: contribute to quark ~(Nc^-)/4Nc FSI: contribute to anti-quark ~/4Nc 4/10/008 DPN Meeting
31 FAIR at GSI 4/10/008 DPN Meeting
32 Summary We are in the early stages of a very exciting era of transverse spin physics studies, where the future RHIC, JLAB, JPARC, FAIR, and EIC experiments will certainly play very important roles We will learn more about QCD dynamics and nucleon structure from these studies, especially for the quark orbital motion 3 3
Sea-quark spin/flavor with Drell-Yan experiments. INT Workshop Orbital Angular Momentum in QCD February 15, 2012 Yuji Goto (RIKEN)
Sea-quark spin/flavor with Drell-Yan experiments INT Workshop Orbital Angular Momentum in QCD February 15, 2012 Yuji Goto (RIKEN) February 15, 2012 2 Outline Fermilab Drell-Yan experiments Unpolarized
More informationSSA Measurements with Primary Beam at J-PARC
SSA Measurements with Primary Beam at J-PARC Joint UNM/RBRC Workshop on Orbital Angular Momentum in Albuquerque February 25 th, 2006 Yuji Goto (RIKEN/RBRC) February 25, 2006 Yuji Goto (RIKEN/RBRC) 2 Introduction
More informationPolarized Drell-Yan Experiment at J-PARC. J-PARC Meeting for Spin and Hadron Physics Nishina Hall at RIKEN April 7 th, 2008 Yuji Goto (RIKEN/RBRC)
Polarized Drell-Yan Experiment at J-PARC J-PARC Meeting for Spin and Hadron Physics Nishina Hall at RIKEN April 7 th, 2008 Yuji Goto (RIKEN/RBRC) J-PARC proposals P04: measurement of high-mass dimuon production
More informationDrell-Yan experiments at Fermilab/RHIC/J-PARC. QCD Frontier 2013 Jefferson Lab October 21, 2013 Yuji Goto (RIKEN)
Drell-Yan experiments at Fermilab/RHIC/J-PARC QCD Frontier 2013 Jefferson Lab October 21, 2013 Yuji Goto (RIKEN) Outline Fermilab Drell-Yan experiments Unpolarized program Flavor asymmetry of sea-quark
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 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 informationSummary of Workshop on Spin of Nucleons from Low to High Energy Scales
Summary of Workshop on Spin of Nucleons from Low to High Energy Scales Jen-Chieh Peng University of Illinois at Urbana-Champaign EINN2015, Paphos, Cyprus, Nov. 1-7, 2015 1 Three Sessions of the Spin Workshop
More informationTransverse SSA Measured at RHIC
May 21-24, 2007 Jefferson Lab Transverse SSA Measured at RHIC Jan Balewski, IUCF Exclusive Reactions Where does the proton s spin come from? p is made of 2 u and 1d quark S = ½ = Σ S q u u Explains magnetic
More informationMeson Structure with Dilepton Production
Meson Structure with Dilepton Production Jen-Chieh Peng University of Illinois at Urbana-Champaign 9 th Workshop on Hadron Physics in China and Opportunities Worldwide Nanjing University, July 24-28, 2017
More informationHighlights from RHIC Spin Program
Highlights from RHIC Spin Program Ming Xiong Liu Los Alamos Na;onal Lab - Longitudinal spin program - Transverse spin program Ming X. Liu 5/31/2010 MENU2010 W&M 1 The Relativistic Heavy Ion Collider at
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 informationRecent transverse spin results from STAR
1 STAR! Recent transverse spin results from STAR Qinghua Xu, Shandong University PanSpin215, Taipei, October 8, 215! Outline 2 Introduction Single spin asymmetries in the forward region Mid-rapidity hadron-jet
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 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 informationStudying Evolution with Jets at STAR. Renee Fatemi University of Kentucky May 28 th, 2015
Studying Evolution with Jets at STAR Renee Fatemi University of Kentucky May 28 th, 2015 Relativistic Heavy Ion Collider Absolute Polarimeter (H jet) RHIC pc Polarimeters Siberian Snakes PHOBOS PHENIX
More informationFirst results of W ± boson production in high-energy polarized p+p collisions at RHIC at BNL
1 First results of W ± boson production in high-energy polarized p+p collisions at RHIC at BNL Outline 2 W production - Recent Results First W + /W - Cross-section and A L Measurement at STAR Experimental
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 informationScale dependence of Twist-3 correlation functions
Scale dependence of Twist-3 correlation functions Jianwei Qiu Brookhaven National Laboratory Based on work with Z. Kang QCD Evolution Workshop: from collinear to non collinear case Thomas Jefferson National
More informationCentral Questions in Nucleon Structure
Central Questions in Nucleon Structure Werner Vogelsang BNL Nuclear Theory QCD and Hadron Physics Town Meeting, 01/13/2007 Exploring the nucleon: Of fundamental importance in science Know what we are made
More informationStudy of the hadron structure using the polarised Drell-Yan process at COMPASS
Study of the hadron structure using the polarised Drell-Yan process at COMPASS Márcia Quaresma, LIP - Lisbon on behalf of the COMPASS collaboration 7 th July 6, MENU 6 Kyoto COMPASS CERN/FIS-NUC/7/5 Márcia
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 informationFundamental Open Questions in Spin Physics
Fundamental Open Questions in Spin Physics p. 1/55 Fundamental Open Questions in Spin Physics Jacques Soffer Physics Department, Temple University, Philadelphia,PA, USA Fundamental Open Questions in Spin
More informationCOMPASS Drell-Yan. Michela Chiosso, University of Torino and INFN. TMD ECT* Workshop April 2016
COMPASS Drell-Yan Michela Chiosso, University of Torino and INFN TMD ECT* Workshop 11-15 April 2016 Outline Single polarized Drell-Yan at COMPASS DY vs SIDIS at COMPASS Experimental setup Spin-dependent
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 informationDrell-Yan Experiment with J-PARC Polarized Proton Beam. IWHSS08 in Torino April 2 nd, 2008 Yuji Goto (RIKEN/RBRC)
Drell-Yan Experiment with J-PARC Polarized Proton Beam IWHSS08 in Torino April 2 nd, 2008 Yuji Goto (RIKEN/RBRC) Introduction Outline J-PARC facility origin of the nucleon spin 1/2 Drell-Yan measurement
More informationCOMPASS Measurements of Asymmetry Amplitudes in the Drell-Yan Process Observed from Scattering Pions off a Transversely Polarized Proton Target
COMPASS Measurements of Asymmetry Amplitudes in the Drell-Yan Process Observed from Scattering Pions off a Transversely Polarized Proton Target University of Illinois E-mail: rsheitz2@illinois.edu On behalf
More informationSelected results and future prospects of the high-energy polarized p+p program at RHIC at BNL
1 Selected results and future prospects of the high-energy polarized p+p program at RHIC at BNL Outline 2 Selected results and future prospects Gluon related studies Quark / Anti-quark related studies
More informationProposal Measurement of High-Mass Dimuon Production at the 50-GeV Proton Synchrotron
Proposal Measurement of High-Mass Dimuon Production at the 50-GeV Proton Synchrotron April 28, 2006 J. Chiba 1, D. Dutta 2, H. Gao 2, Y. Goto 3, L. D. Isenhower 4, T. Iwata 11, S. Kato 11, M. J. Leitch
More informationLepton Angular Distributions in Drell-Yan Process
Lepton ngular Distributions in Drell-Yan Process Jen-Chieh Peng University of Illinois at Urbana-Champaign QCD Evolution 08 Santa Fe May 0-4, 08 Based on the paper of JCP, Wen-Chen Chang, Evan McClellan,
More informationSpin Transfer Studies for Λ c+ c+ Production at RHIC
Spin Transfer Studies for Λ c+ c+ Production at RHIC Kazutaka SUDOH (KEK) SPIN25, TITech 8 July 25 In collaboration with V. L. Rykov (RIKEN/RBRC) I. Introduction & Motivation II. III. IV. Polarized Λ c+
More informationTransverse Momentum Dependent Parton Distributions
Transverse Momentum Dependent Parton Distributions Feng Yuan Lawrence Berkeley National Laboratory 8/14/2012 1 Feynman Parton: one-dimension Inclusive cross sections probe the momentum (longitudinal) distributions
More informationNucleon Spin Structure Longitudinal Spin of the Proton. HUGS Summer School Jefferson National Laboratory June 2, 2011 Lecture 5
Nucleon Spin Structure Longitudinal Spin of the Proton HUGS Summer School Jefferson National Laboratory June 2, 2011 Lecture 5 RHIC as a Polarized Proton Collider Absolute Polarimeter (H jet) pc Polarimeters
More informationFlavor Asymmetry of the Nucleon Sea and W-Boson Production*
Flavor Asymmetry of the Nucleon Sea and W-Boson Production* Department of Physics University of Illinois 7 December 2012 *R. Yang, J.C. Peng, M. Grosse-Perdekamp, Phys. Lett. B 680 (2009) 231-234 What
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 informationContributions to our Understanding of TMDs from Polarized Proton Collisions at STAR
Contributions to our Understanding of TMDs from Polarized Proton Collisions at STAR Stephen Trentalange University of California at Los Angeles, for the STAR Collaboration QCD-N16 Bilbao, Spain July 15,
More informationHall A/C collaboration Meeting June Xuefei Yan Duke University E Collaboration Hall A collaboration
Hall A SIDIS Hall A/C collaboration Meeting June 24 2016 Xuefei Yan Duke University E06-010 Collaboration Hall A collaboration The Incomplete Nucleon: Spin Puzzle [X. Ji, 1997] DIS DΣ 0.30 RHIC + DIS Dg
More informationGluon TMDs and Heavy Quark Production at an EIC
Gluon TMDs and Heavy Quark Production at an EIC Cristian Pisano INT-7-3 Workshop Hadron imaging at Jefferson Lab and at a future EIC September 25-29 27 Seattle (USA) Quark TMDs Angeles-Martinez et al.,
More informationNucleon spin and parton distribution functions
Nucleon spin and parton distribution functions Jörg Pretz Physikalisches Institut, Universität Bonn on behalf of the COMPASS collaboration COMPASS Hadron 2011, Munich Jörg Pretz Nucleon Spin and pdfs 1
More informationToward the QCD Theory for SSA
Toward the QCD Theory for SSA Feng Yuan Lawrence Berkeley National Laboratory RBRC, Brookhaven National Laboratory 5/6/2009 1 Outline Introduction Great progress has been made recently Transverse momentum
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 informationRecent Development in Proton Spin Physics
Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720,USA RIKEN BNL Research Center, Building 510A, Brookhaven National Laboratory, Upton, NY 11973, USA E-mail: fyuan@lbl.gov
More informationThe Gluon Spin Contribu1on to the Proton Spin
The Gluon Spin Contribu1on to the Proton Spin Kieran Boyle RIKEN BNL Research Center Outline Mo1va1on Tools Measurement Constraint on Gluon Spin Contribu1on Future Erice- - ISSP 2012 1 The Nucleon Structure
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 informationSpin Structure of the Nucleon: quark spin dependence
Spin Structure of the Nucleon: quark spin dependence R. De Vita Istituto Nazionale di Fisica Nucleare Electromagnetic Interactions with Nucleons and Nuclei EINN005 Milos September, 005 The discovery of
More informationMeasurements with Polarized Hadrons
Aug 15, 003 Lepton-Photon 003 Measurements with Polarized Hadrons T.-A. Shibata Tokyo Institute of Technology Contents: Introduction: Spin of Proton Polarized Deep Inelastic Lepton-Nucleon Scattering 1.
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 informationTransverse Spin Effects and k T -dependent Functions
Transverse Spin Effects and k T -dependent Functions Daniël Boer Free University, Amsterdam Outline Left-right single spin asymmetries Azimuthal spin asymmetries; Sivers and Collins effects Transversity
More informationNucleon Spin. Tyler Corbett
Nucleon Spin Tyler Corbett Abstract: In 1988 the European Muon Collaboration showed that the quark contribution to spin only accounts for 20-30 percent of the nucleon spin; The "naive quark parton model
More informationChristine Aidala Columbia University Transversity 2004, Trento June 14, 2004
Single Transverse Spin Asymmetries at RHIC Christine Aidala Columbia University Transversity 2004, Trento June 14, 2004 RHIC Physics Broadest possible study of QCD in A-A, p-a, p-p collisions Heavy ion
More informationPolarised Drell-Yan Process in the COMPASS Experiment
Polarised Drell-Yan Process in the COMPASS Experiment Ma rcia Quaresma, LIP - Lisbon on behalf of the COMPASS collaboration 1th April 16, DIS 16 Hamburg COMPASS Ma rcia Quaresma (LIP) CERN/FIS-NUC/17/15
More informationStudies on transverse spin properties of nucleons at PHENIX
Studies on transverse spin properties of nucleons at PHENIX Pacific Spin 2015 Academia Sinica in Taipei, Taiwan October 8, 2015 Yuji Goto (RIKEN/RBRC) 3D structure of the nucleon Conclusive understanding
More informationInstalled and commissioned during run 4 To be commissioned Installed/commissioned in run /10/2005 Raimondo Bertini
Installed and commissioned during run 4 To be commissioned Installed/commissioned in run 5 9-15/10/005 Raimondo Bertini Transverse Structure Functions Twist- PDFs f 1 g 1L g 1T h 1T Distribution functions
More informationPANDA. antiproton Annihilation at DArmstadt
antiproton Annihilation at DArmstadt Physics programme Quark confinement: Charmonium spectroscopy Excited gluons: Exotic hybrid mesons & glueballs Nucleon spin puzzle: transverse quark spin distribution
More informationGluonic Spin Orbit Correlations
Gluonic Spin Orbit Correlations Marc Schlegel University of Tuebingen in collaboration with W. Vogelsang, J.-W. Qiu; D. Boer, C. Pisano, W. den Dunnen Orbital Angular Momentum in QCD INT, Seattle, Feb.
More informationE1039 Polarized SeaQuest
E1039 Polarized SeaQuest Dustin Keller University of Virginia Spin 2018 Outline Physics of Interest The Experimental Setup The Target System The Schedule What we Think we Know Of the 4-5%, Higgs helps
More informationProbing small-x gluons in hadrons and nuclei. Kazuhiro Watanabe. Old Dominion University. Jan 4, 2017 Jefferson Lab
Probing small-x gluons in hadrons and nuclei Kazuhiro Watanabe Old Dominion University Jan 4, 2017 Jefferson Lab Kazuhiro Watanabe (ODU) Probing gluon saturation dynamics at small-x Jan 4, 2017 1 / 16
More informationSuppression of Heavy Quarkonium Production in pa Collisions
Suppression of Heavy Quarkonium Production in pa Collisions Jianwei Qiu Brookhaven National Laboratory Based on works done with Z.-B. Kang, G. Sterman, P. Sun, J.P. Vary, B.W. Xiao, F. Yuan, X.F. Zhang,
More informationDouble-Longitudinal Spin Asymmetry in Single- Inclusive Lepton Scattering
QCD Evolution 2017, JLab, May 22-26, 2017 Double-Longitudinal Spin Asymmetry in Single- Inclusive Lepton Scattering Marc Schlegel Institute for Theoretical Physics University of Tübingen in collaboration
More informationFactorization, Evolution and Soft factors
Factorization, Evolution and Soft factors Jianwei Qiu Brookhaven National Laboratory INT Workshop: Perturbative and nonperturbative aspects of QCD at collider energies University of Washington, Seattle,
More informationCOMPASS Drell-Yan Results and Future Prospect
COMPA Drell-Yan Results and Future Prospect Jen-Chieh Peng University of Illinois at Urbana-Champaign IN Workshop on he Flavor tructure of Nucleon ea Oct. 2-13, 2017 On behalf of COMPA Collaboration (hanks
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 informationTowards Polarized Antiprotons at FAIR
Towards Polarized Antiprotons at FAIR http://www.fz-juelich.de/ikp/pax Frank Rathmann Institut für Kernphysik Forschungszentrum Jülich Kyoto, October 3, 2006 Outline PAX physics program Accelerator configuration
More informationSSA and polarized collisions
SSA and polarized collisions Matthias Burkardt New Mexico State University August 20, 2012 Outline 2 Deeply virtual Compton scattering (DVCS) Generalized parton distributions (GPDs) transverse imaging
More informationarxiv: v1 [hep-ex] 8 Sep 2017
Quarkonium production in proton-proton collisions with ALICE at the LHC arxiv:1709.02545v1 [hep-ex] 8 Sep 2017, on behalf of the ALICE Collaboration, Laboratoire de Physique de Clermont (LPC), Université
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 informationGluons 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 informationHeavy-ion collisions in a fixed target mode at the LHC beams
Heavy-ion collisions in a fixed target mode at the LHC beams Alexey Kurepin 1, and Nataliya Topilskaya 1, 1 Institute for Nuclear Research, RAS, Moscow, Russia Abstract. The interaction of high-energy
More informationarxiv:hep-ph/ v1 4 Feb 1997
DOUBLE SPIN TRANSVERSE ASYMMETRIES IN DRELL YAN PROCESSES V. Barone a,b, T. Calarco c and A. Drago c a Dipartimento di Fisica Teorica, Università di Torino and INFN, Sezione di Torino, 10125 Torino, Italy
More informationExperimental Program of the Future COMPASS-II Experiment at CERN
Experimental Program of the Future COMPASS-II Experiment at CERN Luís Silva LIP Lisbon lsilva@lip.pt 24 Aug 2012 On behalf of the COMPASS Collaboration co-financed by THE COMPASS EXPERIMENT Common Muon
More informationAuckland, New Zealand 11 December Sally Seidel University of New Mexico on behalf of the ATLAS Collaboration
Auckland, New Zealand 11 December 014 Sally Seidel University of New Mexico on behalf of the ATLAS Collaboration 1 The ATLAS Experiment at the CERN Large Hadron Collider This talk reflects the work of
More informationMeasurement of Collins Asymmetries in e + e - Annihilation at Belle
Measurement of Collins Asymmetries in e + e - Annihilation at Belle Workshop on Exclusive Reactions at High Momentum Transfer, Thomas Jefferson Laboratory D. Gabbert Illinois and RBRC M. G.Perdekamp Illinois
More informationTransversity experiment update
Transversity experiment update Hall A collaboration meeting, Jan 20 2016 Xuefei Yan Duke University E06-010 Collaboration Hall A collaboration The Incomplete Nucleon: Spin Puzzle 1 2 = 1 2 ΔΣ + L q + J
More informationQuarkonia physics in Heavy Ion Collisions. Hugo Pereira Da Costa CEA/IRFU Rencontres LHC France Friday, April
Quarkonia physics in Heavy Ion Collisions Hugo Pereira Da Costa CEA/IRFU Rencontres LHC France Friday, April 5 2013 1 2 Contents Introduction (QGP, Heavy Ion Collisions, Quarkonia) Quarkonia at the SPS
More informationNLO weighted Sivers asymmetry in SIDIS and Drell-Yan: three-gluon correlator
NLO weighted Sivers asymmetry in SIDIS and Drell-Yan: three-gluon correlator Lingyun Dai Indiana University Based on the work done with Kang, Prokudin, Vitev arxiv:1409.5851, and in preparation 1 2 Outlines
More informationElectron-Ion Collider for Nuclear and Particle Physics. Hugh Montgomery Jefferson Lab
Electron-Ion Collider for Nuclear and Particle Physics Hugh Montgomery Jefferson Lab Input to this Talk Abhay Deshpande's EICAC talk to Jefferson Lab Users http://www.jlab.org/conferences/ugm/talks/monday/deshpande.pdf
More informationSpin Physics at RHIC. Particle Physics Phenomenology at KEK March 2, 2004 Yuji Goto (RIKEN/RBRC)
Spin Physics at RHIC Particle Physics Phenomenology at KEK March 2, 2004 Yuji Goto (RIKEN/RBRC) Spin physics at RHIC Longitudinal polarized proton collision helicity structure of the proton gluon polarization
More informationSpin physics at Electron-Ion Collider
Spin physics at Electron-Ion Collider Jianwei Qiu Brookhaven National Laboratory Workshop on The Science Case for an EIC November 16-19, 2010; INT, University of Washington, Seattle, WA Outline of my talk
More informationGluon TMDs and Opportunities at EIC
Gluon TMDs and Opportunities at EIC Cristian Pisano INT-18-3 Workshop Transverse Spin and TMDs October 8-12 2018 Seattle (USA) 2/35 TMD factorization and color gauge invariance TMD factorization Two scale
More informationGPDs and TMDs at Electron-Ion Collider. Workshop on hadron tomography at J-PARC and KEKB January 6 th, 2017 KEK, Tsukuba, Japan Yuji Goto (RIKEN)
GPDs and TMDs at Electron-Ion Collider Workshop on hadron tomography at J-PARC and KEKB January 6 th, 2017 KEK, Tsukuba, Japan Yuji Goto (RIKEN) Electron-Ion Collider World s first polarized electron +
More informationQCD Factorization and Transverse Single-Spin Asymmetry in ep collisions
QCD Factorization and Transverse Single-Spin Asymmetry in ep collisions Jianwei Qiu Brookhaven National Laboratory Theory seminar at Jefferson Lab, November 7, 2011 Jefferson Lab, Newport News, VA Based
More informationMeasurement of Collins Asymmetries in the inclusive production of hadron pairs
Measurement of Collins Asymmetries in the inclusive production of hadron pairs INFN-University of Ferrara For the BaBar Collaboration SIF-Società Italiana di Fisica XCVI Congresso Nazionale Bologna, 20-24
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 informationTransverse Momentum Dependent distributions:theory...phenomenology, future
Transverse Momentum Dependent distributions:theory...phenomenology, future Umberto D Alesio Physics Department and INFN University of Cagliari, Italy QCD-N6, 2 nd Workshop on the QCD structure of the nucleon
More informationStudy of transverse momentum dependent distributions from polarised Drell-Yan at COMPASS
EPJ Web of Conferences 73, (14) DOI:.51/epjconf/1473 C Owned by the authors, published by EDP Sciences, 14 Study of transverse momentum dependent distributions from polarised Drell-Yan at COMPASS Márcia
More informationHeavy Flavor Results from STAR
Heavy Flavor Results from STAR Wei Xie for STAR Collaboration (PURDUE University, West Lafayette) Open Heavy Flavor Production D meson direct measurement Non-photonic electron Heavy Quarkonia Production
More informationOverview of Quarkonium Production in Heavy-Ion Collisions at LHC
XLV International Symposium on Multiparticle Dynamics (ISMD2015) Wildbad Kreuth, Germany, October 4-9, 2015 Overview of Quarkonium Production in Heavy-Ion Collisions at LHC Byungsik Hong (Korea University)
More informationDeconstructing the Partonic Origins of the Proton Spin. Renee Fatemi University of Kentucky March 24th, 2016
Deconstructing the Partonic Origins of the Proton Spin Renee Fatemi University of Kentucky March 24th, 2016 The search for the Underlying Mechanisms of Matter drives many areas of science QUARKS are fundamental
More informationMeasuring Form Factors and Structure Functions With CLAS
Measuring Form Factors and Structure Functions With CLAS Jerry Gilfoyle for the CLAS Collaboration Physics Department, University of Richmond, Virginia Outline: 1. Jefferson Lab and the CLAS Detector..
More informationElectron-Ion Collider Taking us to the next QCD Frontier
QCD Evolution 2014 Workshop at Santa Fe, NM (May 12 16, 2014) Electron-Ion Collider Taking us to the next QCD Frontier Jianwei Qiu Brookhaven National Laboratory Acknowledgement: Much of the physics presented
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 informationTransverse Spin Structure with muon beam and Drell-Yan measurements at COMPASS
Transverse Spin Structure with muon beam and Drell-Yan measurements at COMPASS Anna Martin Trieste University and INFN on behalf of the COMPASS Collaboration SPIN-Praha Praha-009 ADVANCED STUDIES INSTITUTE
More informationProgress on the DVCS program at Compass E. Burtin CEA Saclay Irfu/SPhN GDR nucléon, Ecole Polytechnique, 12 décembre 2008
Progress on the DVCS program at Compass E. Burtin CEA Saclay Irfu/SPhN GDR nucléon, Ecole Polytechnique, 12 décembre 2008 Today and tomorrow 2010 and beyond 2008 (Today) : Target region Ring B Ring A 2008
More informationAnomalous Drell-Yan asymmetry from hadronic or QCD vacuum effects
Anomalous Drell-Yan asymmetry from hadronic or QCD vacuum effects Daniël Boer Free University, Amsterdam Outline Anomalously large cos(2φ) asymmetry in Drell-Yan A QCD vacuum effect? A hadronic effect?
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 informationPolarizing Helium-3 for down quark spin enrichment. Nigel Buttimore
Polarizing Helium-3 for down quark spin enrichment Nigel Buttimore Trinity College Dublin 12 September 2012 Diffraction 2012 Polarized Helium-3 OUTLINE Introduction to the spin structure of polarized protons
More informationTHE NUCLEUS AS A QCD LABORATORY: HADRONIZATION, 3D TOMOGRAPHY, AND MORE
rhtjhtyhy EINN 2017 NOVEMBER 1, 2017 PAPHOS, CYPRUS THE NUCLEUS AS A QCD LABORATORY: HADRONIZATION, 3D TOMOGRAPHY, AND MORE KAWTAR HAFIDI Argonne National Laboratory is a U.S. Department of Energy laboratory
More informationNucleon polarised parton distribution functions
Nucleon polarised parton distribution functions Gerhard K. Mallot CERN, 111 Geneva 3, Switzerland Abstract An introduction to the present status of spin-dependent parton distribution functions is given.
More informationExciting opportunities at JLab GeV!
Exciting opportunities at JLab 25-75 GeV! JLab users town meeting, Newport News! March 16 2012! Kawtar Hafidi! Develop a common vision for the future! The future starts today! 40 - Today (2012), we are
More informationPoS(BEAUTY2016)023. Heavy flavour production at CMS. Giulia Negro. CEA/IRFU,Centre d etude de Saclay Gif-sur-Yvette (FR)
CEA/IRFU,Centre d etude de Saclay Gif-sur-Yvette (FR) E-mail: giulia.negro@cern.ch hree recent results in heavy flavour production at the experiment are addressed in this report. Measurements of the differential
More informationRecent Progress on the Determination of Nuclear Parton Distribution Functions
Recent Progress on the Determination of Nuclear Parton Distribution Functions Shunzo Kumano High Energy Accelerator Research Organization (KEK) Graduate University for Advanced Studies (GUAS) shunzo.kumano@kek.jp
More information