Beam and SKS spectrometers at the K1.8 beam line
Author(s) -
T. Takahashi,
Satoshi Adachi,
M. Agnello,
K. Aoki,
O. Araoka,
B. Bassalleck,
E. Botta,
S. Bufalino,
N. Chiga,
P. Evtoukhovitch,
A. Feliciello,
Juergen Franz,
Hiroyuki Fujioka,
S. Hayakawa,
E. Hirose,
R. Honda,
Kenji Hosomi,
Y. Ichikawa,
Y. Igarashi,
M. Iida,
M. Ikeno,
K. Itahashi,
N. Ishibashi,
S. Ishimoto,
R. Iwasaki,
Y. Kakiguchi,
K. Kasami,
Sunji Kim,
Ryuta Kiuchi,
Takeshi Koike,
Yusuke Komatsu,
A. A. Kustov,
David Mjavia,
Y. Makida,
Simonetta Marcello,
T. Maruta,
S. Masumoto,
Kenji Matsuoka,
K. Miwa,
A. Moiseenko,
Manabu Moritsu,
T. Nagae,
M. Naruki,
H. Noumi,
Hirokazu Ohhata,
Takahiro Okamura,
R. Ota,
Masatoshi Saito,
A. Sakaguchi,
Valentin Samoilov,
Misako Sato,
Y. Sato,
M. Sekimoto,
Y. Shirakabe,
K. Shirotori,
Hitoshi Sugimura,
S. Suzuki,
Yoshihiro Suzuki,
Hitoshi Takahashi,
Hirokazu Tamura,
M. Tanaka,
K. Tauchi,
Toshiyuki Tanaka,
K. Tanida,
A. O. Tokiyasu,
Kotaro Yoshida,
A. Toyoda,
Z. Tsamalaidze,
Tomohisa Uchida,
M. Ukai,
H. Watanabe,
T. O. Yamamoto,
Y. Yonemoto,
C.J. Yoon
Publication year - 2012
Publication title -
progress of theoretical and experimental physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.887
H-Index - 53
ISSN - 2050-3911
DOI - 10.1093/ptep/pts023
Subject(s) - physics , beam (structure) , spectrometer , line (geometry) , nuclear physics , astrophysics , optics , geometry , mathematics
High-resolution spectrometers for both incident beams and scattered particles have been constructed at the K1.8 beam line of the Hadron Experimental Facility at J-PARC. A point-to-point optics is realized between the entrance and exit of QQDQQ magnets for the beam spectrometer. Fine-pitch wire chamber trackers and hodoscope counters are installed in the beam spectrometer to accept a high rate beam up to 107 Hz. The superconducting kaon spectrometer for scattered particles was transferred from KEK with modifications to the cryogenic system and detectors. A missing-mass resolution of 1.9 ± 0.1 MeV/c2 (FWHM) was achieved for the Σ peaks of (π±,K+) reactions on a proton target in the first physics run of E19 in 201
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