Highlights from Spin2003 in SeattleHighlights from Spin2003 in SeattleExperimental part limitedExperimental part limited

(the 4th Circum-Pan-Pacific Symposium On High Energy Spin Physics)

4-7 August 2003at University of Washington, Seattle, USA

Osamu Jinnouchi (RBRC) and other participants

2Sep 2nd 2003

O. Jinnouchi Spin2003 in Seattle

Outline (talks from outside of BNL are selected ) The talks from BNL (just a list) Plenary sessions

COMPASS, GDH sum rule, G0, penta-quark Parallel sessions

Gluon polarization session GPD session Quark polarization session Intermediate Q2 session Transverse spin session Low energy hadron physics session

summary

3Sep 2nd 2003

O. Jinnouchi Spin2003 in Seattle

Talks from BNL (Experiments)

Spin Physics from PHENIX (G. Bunce) Spin Physics from STAR (S. Vigdor) RHIC-STAR (J. Sowinski) RHIC-PHENIX (K. Okada) pC polarimetry at the AGS (A. Bravar) pC polarimetry at RHIC (O. Jinnouchi)   pp elastic scattering and its spin dependence at

RHIC (S. Bueltmann)       Future Spin Facilities (A. Deshpande)    

Photo by Kensuke

4Sep 2nd 2003

O. Jinnouchi Spin2003 in Seattle

From Plenary sessions (pick up 3 talks)

COMPASS experiment from CERN Gerhard Mallot /CERN

G0 experiment from Jlab Allison Lung /Jlab

GDH sum rule experiment from Mainz and Bonn Paolo PEDRONI /INFN

5Sep 2nd 2003

O. Jinnouchi Spin2003 in Seattle

COMPASS

6LiD polarized target (50%) 2cells in opposite pol.

2.5T Super Conducting Magnet (reversed every 8 hours)

LargeAngleSpectrometer180mrad

SmallAngleSpectrometer30mrad

6Sep 2nd 2003

O. Jinnouchi Spin2003 in Seattle

COMPASS

•Hyperon, Vector meson productions•Flavour decomposition of pol. PDF•dG/G from high-Pt hadron pairs•Transversity and Collins asymmetry

2002 RUN

7Sep 2nd 2003

O. Jinnouchi Spin2003 in Seattle

COMPASS Performance

Good PID power of K,

Armenterous plot

8Sep 2nd 2003

O. Jinnouchi Spin2003 in Seattle

COMPASSThe first look at Open charm channelClean process w/o contribution from quark distribution

317 D0

9Sep 2nd 2003

O. Jinnouchi Spin2003 in Seattle

COMPASS

Summary Their analysis for 2002 run is on the way They only showed the perspectives and

preliminaries with low (fraction) statistics

Outlook for COMPASS

10Sep 2nd 2003

O. Jinnouchi Spin2003 in Seattle

G0 / Jlab @ Hall C Physics motivation Physics motivation

11Sep 2nd 2003

O. Jinnouchi Spin2003 in Seattle

G0 / Jlab

12Sep 2nd 2003

O. Jinnouchi Spin2003 in Seattle

G0 / Jlab

13Sep 2nd 2003

O. Jinnouchi Spin2003 in Seattle

G0 / Jlab

14Sep 2nd 2003

O. Jinnouchi Spin2003 in Seattle

G0 / Jlab

15Sep 2nd 2003

O. Jinnouchi Spin2003 in Seattle

GDH sum rule

16Sep 2nd 2003

O. Jinnouchi Spin2003 in Seattle

GDH sum rule

17Sep 2nd 2003

O. Jinnouchi Spin2003 in Seattle

GDH sum rule

summary

18Sep 2nd 2003

O. Jinnouchi Spin2003 in Seattle

From parallel sessions (pick up 5 talks)

Gluon polarization session HERMES&Pythia Patricia Liebing /HERMES

GPD session DVCS at HERA / Jim Whitmore /Penn State Univ.

Quark polarization session HERMES results / Toshiaki Shibata /Tokyo Institute of Tech.

Transverse Spin physics HERMES transversity / Gunar Schunell /Desy CLAS transversity / H.Avakian / Jlab

Low energy hadron physics E158 @ SLAC / Klejda Bega/ Caltech

19Sep 2nd 2003

O. Jinnouchi Spin2003 in Seattle

DVCS at HERA / Jim Whitmore /Penn State Univ.Deeply Virtual Compton Scattering

After subtracting the competingB-H process (QED)

20Sep 2nd 2003

O. Jinnouchi Spin2003 in Seattle

DVCS at HERA / Jim Whitmore /Penn State Univ.

21Sep 2nd 2003

O. Jinnouchi Spin2003 in Seattle

HERMES results / Toshiaki Shibata /Tokyo Institute of Tech.

New SIDIS Data

22Sep 2nd 2003

O. Jinnouchi Spin2003 in Seattle

HERMES transversity / Gunar Schunell /Desy

23Sep 2nd 2003

O. Jinnouchi Spin2003 in Seattle

CLAS transversity / H.Avakian / Jlab

24Sep 2nd 2003

O. Jinnouchi Spin2003 in Seattle

CLAS transversity / H.Avakian / Jlab

CLAS 12GeV

25Sep 2nd 2003

O. Jinnouchi Spin2003 in Seattle

E158/SLAC A precision measurement of weak mixing angle in Moller Scattering

26Sep 2nd 2003

O. Jinnouchi Spin2003 in Seattle

E158/SLAC

27Sep 2nd 2003

O. Jinnouchi Spin2003 in Seattle

Conclusions

In Seattle Spin2003, there were many preliminary and final results from the recent activities outside of BNL

Numbers of activities from Jlab were especially impressive, in terms of the size, people, and thoroughness of the experiments

Discussions for the theory talks were also hot (hotter) and I hope someone covers the theory side in this spin discussion

Online transparencies are available from their site:http://int.phys.washington.edu/PROGRAMS/spin_03talks.html

28Sep 2nd 2003

O. Jinnouchi Spin2003 in Seattle

29Sep 2nd 2003

O. Jinnouchi Spin2003 in Seattle

Appendix

Spin physics at intermediate Q2 GDH sum rule test @ Jlab / Alexandre Deur/ Univ. of

Virginia