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SIR 2005

Semi-Inclusive Reactions (SIR) Workshop 2005

May 18-20, 2005

Jefferson Lab
Newport News, Virginia USA

Agenda


Tuesday, May 17, 2005
18:00 - 20:00 Networking reception/Registration, SURA residence facility  

Wednesday, May 18, 2005

Plenary Session: JLab Auditorium

07:30 - 08:30 Registration/Continental breakfast  

Session: Welcome, Chair: L. Elouadrhiri

08:30 - 08:40 Welcoming Remarks/Workshop Motivation A. Thomas (JLab)
08:40 - 09:20 Hard Scattering Processes: Theory Xiangdong Ji (University of Maryland)
09:20 - 10:00 Hard scattering processes: Experiment Naomi Makins (UIUC)
10:00 - 10:30 Coffee Break  

Session: Orbital motion of quarks and SSA, Chair: P. Hoodbhoy

10:30 - 11:00 GPDs and SSAs Matthias Burkardt (NMSU)
11:00 - 11:20 Sources of Orbital Structure in Hadronic Distributions D. Sivers (U.Michigan)
11:20 - 11:40 Rescattering effects in DIS Paul Hoyer (University of Helsinki)
11:40 - 12:00 Azimuthal Asymmetries From Hadronic Versus QCD Vacuum Effects Daniel Boer (Free University Amsterdam)
12:00 - 12:20 Models of Collins and Sivers Functions Alessandro Bacchetta (University of Regensburg)
12:20 - 14:00 Lunch Break  

Session: Transverse spin asymmetries I, Chair: D. Hasch

14:00 - 14:30 Transversity Experiments Jen-Chieh Peng (UIUC)
14:30 - 14:50 SSA in Semi-inclusive DIS at HERMES Gunar Schnell (Tokyo Institute of Technology)
14:50 - 15:10 TMD Studies at BELLE and BNL Matthias Grosse Perdekamp (UIUC)
15:10 - 15:30 Transverse spin effects at COMPASS Andrea Bressan (University of Trieste)
15:30 - 15:50 Spin and Azimuthal Asymmetries in SIDIS at JLAB - Peter Bosted (Jefferson Lab)
15:50 - 16:10 Coffee Break  

Session: Transverse spin asymmetries II, Chair: Z.E. Meziani

16:10 - 16:30 Transversity Theory Alessandro Drago (University of Ferrara)
16:30 - 16:50 Phenomenology of TMD's Umberto D'Alesio (Dipartimento di Fisica Università di Cagliari & INFN)
16:50 - 17:10 Azimuthal and Transverse Single Spin Asymmetries in SIDIS Leonard Gamberg (Penn State Berks)
17:10 - 17:30 Transversity Distributions and T-odd Asymmetries Gary Goldstein (Tufts University)
17:30 - 17:50 T-odd Effects in SIDIS Dae Sung Hwang (Sejong University)
18:00 - 20:00 Networking Reception, CEBAF Center Lobby  

Thursday, May 19, 2005

Plenary Session: JLab Auditorium

08:00 - 08:30 Continental Breakfast  

Session: GPD Studies I, Chair: P. Bertin

08:30 - 09:00 GPD Extraction Wolf-Dieter Nowak (DESY)
09:00 - 09:20 The DVCS Program at HERMES Frank Ellinghaus (University of Colorado)
09:00 - 09:40 GPD studies at JLab Michel Garcon (SPhN-Saclay)
09:40 - 10:00 GPD studies at COMPASS Etienne Burtin (Saclay)
10:00 - 10:10 Discussion  
10:10 - 10:30 Coffee Break  

Session: GPD Studies II, Chair: D. Richards

10:30 - 11:00 k-T Dependence in Hard Exclusive Production Anatoly Radyushkin (ODU/JLab)
11:00 - 11:20 The GPD and the Underlying Spin Structure of the Nucleon Masashi Wakamatsu (Osaka University)
11:20 - 11:40 Generalized Parton Distributions and Transversity from Lattice QCD James Zanotti (NIC/DESY Zeuthen)
11:40 - 12:00 GPDs in Lattice QCD - George Fleming (Yale)
12:00 - 12:20 GPDs in Nuclei Simonetta Liuti (UVA)
12:20 - 14:00 Lunch Break/JLab Tour  

Session: SSA and Transversely Polarized Quarks, Chair: C.E. Carlson

14:00 - 14:30 P-t Dependence of SSA Feng Yuan (RBRC/BNL)
14:30 - 14:50 Single Spin Asymmetries in Semi-inclusive DIS Fetze Pijlman (Vrije Universiteit Amsterdam)
14:50 - 15:10 Chiral Quark Soliton Model for SIDIS Peter Schweitzer (Ruhr University Bochum)
15:10 - 15:30 Beam SSA Eduard Avetisyan (LNF-INFN)
15:30 - 15:50 Collins Function Measurements at Belle Akio Ogawa (STAR)
15:50 - 16:00 Discussion  
16:00 - 16:20 Coffee Break  

Session: Transverse Spin Effects and 2-pion Production, Chair: K. Griffioen

16:20 - 16:50 Transversity and Inclusive 2-pion Production Marco Radici (INFN - Pavia)
16:50 - 17:10 Semi-inclusive Production of Pions and Kaons: Exclusive Channels vs. Independent Fragmentation Christian Weiss (Jefferson Lab)
17:10 - 17:30 Exclusive Two-Pion Photoproduction Antoni Szczurek (Institute of Nuclear Physics/Rzeszow University)
17:30 - 17:50 Exclusive Meson Production at HERMES Riccardo Fabbri (DESY)
17:50 - 18:10 Single Spin Asymmetry in Interference Fragmentattion on a Transversely Polarized Hydrogen Target at HERMES Tomohiro Kobayashi (Tokyo Institute of Technology)
18:10 - 18:20 Discussion  
18:45 - 20:00 Working Dinner for Conveners  

Friday, May 20, 2005

Plenary Session: JLab Auditorium

08:00 - 08:30 Continental Breakfast  

Session: Fragmentation Functions and Flavor Decomposition, Chair: A. Bruell

08:30 - 09:00 The Difference Asymmetries in SIDIS and HT Ekaterina Christova (Sofia University)
09:00 - 09:20 A First Phenomenological Separation of all Quark Flavours in Fragmentattion Functions Simon Albino (Hamburg University (DESY))
09:20 - 09:40 Drell-Yan Studies at Fermilab Paul Reimer (Argonne National Laboratory)
09:40 - 10:00 Probing Fragmentation Functions with SIDIS Lingyan Zhu (UIUC)
10:00 - 10:10 Discussion  
10:10 - 10:30 Coffee Break  

Session: Target Fragmentation, Chair: H. Avakian

10:30 - 10:50 Target Fragmentation and Fracture Functions L Trentadue (INFN-Parma)
10:50 - 11:10 SSA in Target Fragmentation Aram Kotzinian (Torino University & INFN)
11:10 - 11:30 Origin of Nucleon Sea via Target Fragmentation Wally Melnitchouk (Jefferson Lab)
11:30 - 11:50 Target Fragmentation Sudies at JLab Mikhail Osipenko (INFN)
11:50 - 12:00 Discussion  
12:00 - 13:30 Lunch Break  

Session: Future Studies, Chair: W. Brooks

13:30 - 14:00 Future Studies of TMDs Delia Hasch (LNF.INFN)
14:00 - 14:30 Prospects for GPD and TMD Studies with JLab at 12 GeV Volker Burkert (Jefferson Lab)
14:30 - 14:50 Status of JLab 12-GeV Upgrade Allison Lung (Jefferson Lab)
14:50 - 15:10 Coffee Break  

Session: Summary, Chair: W. Brooks

15:10 - 15:30 Summary on Fragmentation & Flavor Decomposition A.Bruell, P. Hoyer, E. Christova
15:30 - 15:50 Summary on GPD Studies P. Hoodbhoy, W.D. Nowak, M. Garcon
15:50 - 16:10 Summary on Transverse Spin Asymmetries and HT D. Boer, J.C. Peng