https://doi.org/10.1051/epjconf/20100303017
Precision Spectroscopy of Kaonic Helium-3 Atoms X-rays at J-PARC
1
RIKEN Nishina Center, RIKEN, Saitama
351-0198,
Japan
2
Department of Physics, Seoul National University,
Seoul, 151-742,
South Korea
3
Stefan Meyer Institut für subatomare Physik,
A-1090
Vienna,
Austria
4
Laboratori Nazionali di Frascati, INFN,
I-00044
Frascati,
Italy
5
Research Center for Nuclear Physics (RCNP), Osaka
University, Osaka, 567-0047, Japan
6
Department of Physics, Kyoto University
Kyoto
606-8502,
Japan
7
Department of Physics, The University of Tokyo,
Tokyo
113-0033,
Japan
8
IPNS, High Energy Accelerator Research Organization
(KEK), Ibaraki
305-0801,
Japan
9
Department of Physics, Tokyo Institute of
Technology, Tokyo, 152-8551, Japan
10
Technische Universiät München, D-85748, Garching, Germany
11
Graduate School of Arts and Sciences, The university of
Tokyo, Tokyo, 153-8902, Japan
a e-mail: iio@riken.jp
We will measure the Balmer-series x-rays of kaonic-3He atoms using large-area high-resolution silicon drift x-rays detectors in order to provide the crucial information of K−-nucleus strong interaction at the low energy limit. The strong interaction 2p level shift will be determined with a precision of a few eV. At the present status, the construction of all detectors is in progress. In February, 2009, the first tuning of K1.8BR beamline was performed by the secondary beam generated in J-PARC hadron facility. The data taking will be started soon.
© Owned by the authors, published by EDP Sciences, 2010