First circular
                  KEK theory center workshop on
  Hadron physics with high-momentum hadron beams at J-PARC in 2015
             March 13 - 16, 2015, KEK, Tsukuba, Japan


The workshop on hadron physics with high-momentum hadron beams at J-PARC
in 2015 will be held from March 13 to March 16, 2015 at KEK, Tsukuba,
Japan. This workshop is intended to discuss possible hadron-physics
projects by using the high-momentum beamline at J-PARC. The high-momentum
hadron beam was financially approved by the Japanese government in 2013,
and it is expected to be ready in 2016.

We list some physics topics in the following "Possible hadron-physics
topics"; however, any interesting new ideas are welcome from both
theorists and experimentalists. If you are interested in participating
in this workshop, please send the attached pre-registration form by email.
The list of speakers will be announced in the workshop web page and
in the second circular.

The second circular will be distributed in January, and it includes
detailed information on practical matters such as registration, housing,
etc. Since this is a good opportunity for hadron-physics communities
to produce valuable results by using the new hadron beamline, we hope
to have your active participation and contributions to the the workshop.

We are looking forward to seeing you at the workshop.

Sincerely, Shunzo Kumano, Osamu Morimatsu, Kyoichiro Ozawa, Shin'ya Sawada (KEK)

High-momentum beamline
The high-momentum beamline can transport the primary proton beam (30 GeV)
with the intensity of 10^10 - 10^12/sec to the Hadron Hall, and it is 
a branch from the main proton beam of 10^13 or 10^14/sec.  In addition,
by installing a thin production target into the main proton beam 
at the branching point, one can obtain unseparated secondary beams
such as pions etc. The beam intensity of these secondaries depends
on its species and momentum. A typical intensity for 10 GeV/c (15 GeV/c)
pions would be in the order of 10^7/sec (10^6/sec) or so. The intensity 
for higher momentum beams would be less. The construction of 
the beamline has been started.

Possible hadron-physics topics
The following list is just an example of possible projects.
We welcome new ideas on the projects.
* high-energy exclusive processes (GPD, quark counting, ...)
* pQCD, partonic structure of nucleon and nuclei, spin physics
* charmed-hadron physics, intrinsic charm and strange
* hadron properties in nuclear medium
* quark/hadron interactions in nuclear medium
* related theoretical developments
* other ideas on possible projects

For getting a rough idea of discussion topics, you may look at 
the previous workshop (http://www-conf.kek.jp/hadron1/j-parc-hm-2013/).
In the workshop of 2015, we expect to focus more on each topics toward 
new proposals or updates of proposals, especially on
(1) high-energy hadron physics (exclusive reactions, nucleon structure)
(2) charm-production cross sections and spectroscopy
(3) mass modifications and possible relation to chiral symmetry restoration.

We have only invited speakers for presentations at this workshop. 
However, if you have a good idea on a topic at the high-momentum 
beamline, you may get in touch with one of organizers
(email: j-parc-hm15(AT)ml.post.kek.jp)
or by writing a comment in the following pre-registration form.

If you are interested in participating in the workshop, please send
the following form by email.
------------------------------ cut -------------------------------
To:      j-parc-hm15(AT)ml.post.kek.jp    (AT)--->@
Subject: Preregistration, High-momentum beamline physics at J-PARC

Name:          First name  Last name
Expected dates of visit: Arrival March xx,  Departure March xx
Comment (if you have):
------------------------------ cut -------------------------------

A registration form will be attached on the second circular.
The registration fee is planned to be about 5000-Yen, including the fee
for a get-together party and coffee. The exact amount of the registration
fee will be announced in the second circular.

We have limited financial support of local expenses especially 
for young scientists who do not have own financial resource. 

We will inform you accommodations in the second circular.

Workshop site
Kobayashi Hall, 1st Floor, Kenkyu-Honkan building
Tsukuba campus
High Energy Accelerator Research Organization (KEK)
1-1, Ooho, Tsukuba, Ibaraki, 305-0801, Japan
	KEK homepage: http://www.kek.jp/en/ForResearcher/
	Access to KEK: http://www.kek.jp/en/CometoKEK/
	Campus map: http://www.kek.jp/en/ForResearcher/KEKMap/
	Kobayashi hall: https://stw.kek.jp/stpg/html/kaigishitsu/img/KobayashiHall.jpg
	Lounge: https://stw.kek.jp/stpg/html/kaigishitsu/img/K-H-Lobby.jpg

Organizing committee: 
	Shunzo Kumano, Osamu Morimatsu, Kyoichiro Ozawa, Shin'ya Sawada (KEK)
	Email: j-parc-hm15(AT)ml.post.kek.jp   (AT)--->@

	Ms. Michiyo Sakurai,	j-parc-hm15(AT)ml.post.kek.jp   (AT)--->@