1stcircular< The 7th Circum-Pan-Pacific Symposium on 'High Energy Spin Physics' >Dear Colleagues,
Circum-Pan-Pacific Symposium on 'High Energy Spin Physics'(http://www.quark.kj.yamagata-u.ac.jp/pacific-spin09)will be held at Yu-gaku kan,
Yamagata, Japan, on Sept. 15-18, 2009. This is the 7th in a series, following theones at Kobe, Japan(1996), RIKEN, Japan(1999), Beijing, China(2001), Seattle,USA(2003), Tokyo, Japan(2005),Vancouver, Canada(2007).
Spin is one of the basic properties of elementary particles. The discoveries
concerning spin often triggered physicists to open a new chapter of physics. Thespin structure of the nucleon, namely how the nucleon spin is distributed on its
quarks and gluons, is one of the interesting challenges of QCD.
Today QCD allows to extract an ever more detailed picture of the internal structureof hadrons, including two and three dimensional position and/or momentum
distributions and quark-gluon correlations. Spin degrees of freedom and angular
distributions allow to separate such effects and thus are vital for these successes.
The various aspects of the QCD process form the main topic of the symposium.
The aim of the symposium is to enhance communications among physicists
from Circum-Pan-Pacific region and from other regions. Supportingpresentations of young physicists is another feature of this symposium.
The symposium basically consists of all plenary sessions.
The idea is that all participants share the same discussions and deepen
the common understanding of current problems and the future prospects for high energy
spin physics. At the practical level, the discussion sessions will beinterleaved with the usual presentation sessions, which should allow any participant
to make his/her short presentation or comment.
Important dates:
Deadline for registration with reduced registration fee
Deadline for submitting one-page abstract
Symposium - Sept. 15-18, 2009

-July 25, 2009
July 25, 2009

Those who need a visa to come to Japan are advised to contact theorganizers as soon as possible, in early May.
1. The topics to be covered are:Spin and fundamental symmetries
Spin in hard QCD processes
Nucleon spin problem
Structure functions of the nucleon and nuclei
Polarized parton distributions and fragmentation functions
Transversity and Collins effectTransverse momentum dependent distribution functions
Higher twist effects
Generalized Parton Distributions
Recent progress of spin experiments:
COMPASS, HERMES, JLab, RHIC and many others
Structure functions on the lattice and effective QCD models
Future experiments and facilities
New idea and methods
2. The registration:
The registration can be done from the web-site of the symposium.
The deadline of registration with reduced registration fee is July 25,2009 (20,000 Yen (15,000 Yen for graduate students)).
For a later registration the registration fee becomes higher.
For details please see the web-site of the symposium.
The registration fee can be paid by cash in Yen only, upon arrival at
the registration desk on Sept. 15th, 2009.
3. Visa:Those who need a visa to come to Japan are recommended to contact theorganizers (pacific09@quark.kj.yamagata-u.ac.jp) as soon as possible,
in early July.
4. The talks consist of invited talks and talks selected fromcontributions. One-page abstract of contribution should be submitted by
July 25, 2009 to pacific09@quark.kj.yamagata-u.ac.jp

For details of instruction, please see the web-site of the symposium.
5. Hotels:
The participants are requested to make hotel reservations byhimself/herself.
Information provided by the organizers on the web-site of the syposium
will help the participants. If you have questions, please send mail topacific09@quark.kj.yamagata-u.ac.jp
6. Organizers and advisors:
Local Organizing Committee
Norihiro Doshita (Yamagata),
Yuji Goto (Riken Nishina Center),
Takahiro Iwata (Yamagata, Chair),Kaori Kondo (Yamagata),
Shunzo Kumano (KEK),
Yoshiyuki Miyachi (Tokyo Tech.),Yasuhisa Tajima (Yamagata),
Hiroshi Y. Yoshida (Yamagata)International Organizers
Leslie C. Bland (BNL),
Hideto En'yo (Riken Nishina Center),
Takahiro Iwata (Yamagata),
Andreas Schäfer (Regensburg),
Toshi-Aki Shibata (Tokyo Tech),International Advisors
Hai-Yang Cheng (Inst. Phys., Academia Sinica, Taipei),
Rodney Crewther (Adelaide),
Naoaki Horikawa (Chubu U.),
Kenichi Imai (Kyoto),
Robert L. Jaffe (MIT),
Wooyoung Kim (Kyungpook U.),
Bo-Qiang Ma (Beijing),
Toshiyuki Morii (Kobe),
Anthony W. Thomas (JLab),*: to be confirmed

The organizers trust that many physicists will actively participate in and enjoy
the symposium !
１０．Supporting Bodies
This symposium is supported by Yamagata University, RIKEN Nishina Center andTokyo Institute of Technology.