RCNP-Z-666
                                              2006.7.4

                              




                 Call for Proposals for Experiments
          at the Laser-Electron Photon Facility at SPring-8 (LEPS)



      This is the call for new proposals as well as updated proposals
     for experiments at the Laser-Electron Photon Facility at SPring-8 (LEPS).
     The LEPS is open to everybody in scientific research.
     The proposals may be submitted to the Director of RCNP at any time.
     The RCNP Q-PAC (Program Advisory Committee for the LEPS experiment)*
     evaluates scientific values and feasibilities of the proposed
     experiments. The result of the Q-PAC is submitted to the Director.
     Q-PAC meets at least once a year and reviews research programs
     received more than two weeks in advance of the Q-PAC meeting.
     The spokesperson or one of his colleagues is requested to give an
     oral presentation of the proposal at Q-PAC. According to the
     recommendation of Q-PAC, the experiment for accepted proposals will
     be supported by the LEPS/RCNP. Each spokesperson should contact the
     LEPS division leader, Prof. Takashi Nakano, for scheduling the beam-time.

      The LEPS Facility and the present status is found on the Web page
     for reference of proposals. URL is
      http://www.rcnp.osaka-u.ac.jp/Divisions/np1-b/index.html .

     The backward-Compton scattering of laser photons from 8 GeV electrons
     produces linearly or circularly polarized photon beam. The maximum
     energy and intensity are dependent on the laser sources. The photon
     energy can be tagged with a typical resolution of 15 MeV in the energy
     region above 1.5 GeV. The tagging rate is typically 10^6 Hz for the
     beam with the maximum energy of 2.4 GeV. The new beam with the maximum
     energy of 2.96 GeV is now available, although the intensity is still
     not so high, around 10^5 Hz. A forward spectrometer for charged
     particles, a large solid-angle electro-magnetic (EM) calorimeter for
     gamma-rays, and a time-projection chamber (TPC) surrounding small
     target region are available for the experiment at LEPS. (The EM
     calorimeter is now used in the experiment at the Laboratory of Nuclear Science,
     Tohoku University, and can not be used at LEPS for a while.)
     Another TPC for the liquid hydrogen and deuterium targets will be open
     for experiments soon.

      Since we have no additional budget except for the standard
     operation of the LEPS beam to support approved experiments, it is
     strongly recommended that the spokesperson tries to get such outside
     funds as a grant-in-aid for the proposed experiment.

      The next Q-PAC meeting will be held on September 25 (Monday), 2006.
                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
      The deadline of proposals to be reviewed in the coming Q-PAC is
      September 11 (Monday), 2006.
      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
      The format of a proposal is free. However it should include the following
      information. The official language is English.

        1. COVER PAGE :
          Title of a proposal,
          Spokesperson (name, affiliation, position, email address),
          A collaborator list (name, affiliation, position),
          Beam running time,
          Requirements for the beam condition and experimental equipment.

        2. SUMMARY OF PROPOSAL:

        3. DETAILED DESCRIPTION OF PROPOSED RESEARCH:
          Objectives and Impacts of the experiment,
          Experimental method and apparatus,
          Estimation of the beam time requested,
          Experimental schedule,
          Equipment provided by the experimental group, if any.

      There is no charge for use of the beam and existing experimental facilities.
     In return, all the results obtained from an experiment should be open to public.
     A copy of any published papers resulting from the work at LEPS must be sent to
     the RCNP director.


      For the detailed information about the beam and facilities at LEPS,
      please contact Prof. T. Nakano (nakano@rcnp.osaka-u.ac.jp).

           * Present Q-PAC committee
            H. Noumi KEK
            M. Yosoi RCNP, Osaka University
            M. Asakawa Osaka University
            R. Hayano University of Tokyo
            N. Saito Kyoto University
            A. Hosaka RCNP, Osaka University

      Mailing address for Proposals is following. Electronic submission is
      strongly recommended.

           Director Hiroshi Toki
           Research Center for Nuclear Physics(RCNP), Osaka University,
           10-1 Mihogaoka Ibaraki, Osaka 567-0047, Japan
           FAX: +81-6-6879-8899
           Tel: +81-6-6879-8900
           e-mail: director@rcnp.osaka-u.ac.jp

           Hiroshi Toki
           Director of RCNP
           Osaka University

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