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 2010.

Beam and SKS spectrometers at the K1.8 beam line / T., Takahashi; S., Adachi; Agnello, Michelangelo; K., Aoki; O., Araoka; B., Bassalleck; E., Botta; Bufalino, Stefania; N., Chiga; P., Evtoukhovitch; A., Feliciello; J., Franz; H., Fujioka; S., Hayakawa; E., Hirose; R., Honda; K., Hosomi; Y., Ichikawa; Y., Igarashi; M., Iida; M., Ikeno; K., Itahashi; N., Ishibashi; S., Ishimoto; R., Iwasaki; Y., Kakiguchi; K., Kasami; S., Kim; R., Kiuchi; T., Koike; Y., Komatsu; A., Kustov; D., Mjavia; Y., Makida; S., Marcello; T., Maruta; S., Masumoto; K., Matsuoka; K., Miwa; A., Moiseenko; M., Moritsu; T., Nagae; M., Naruki; H., Noumi; H., Ohhata; T., Okamura; R., Ota; M., Saito; A., Sakaguchi; V., Samoilov; M., Sato; Y., Sato; M., Sekimoto; Y., Shirakabe; K., Shirotori; H., Sugimura; S., Suzuki; Y., Suzuki; H., Takahashi; T. N., Takahashi; H., Tamura; M., Tanaka; K., Tauchi; T., Tanaka; K., Tanida; A. O., Tokiyasu; K., Yoshida; A., Toyoda; Z., Tsamalaidze; T., Uchida; M., Ukai; H., Watanabe; T. O., Yamamoto; Y., Yonemoto; C. J., Yoon. - In: PROGRESS OF THEORETICAL PHYSICS. - ISSN 0033-068X. - 2012:(2012), pp. 0-16. [10.1093/ptep/pts023]

Beam and SKS spectrometers at the K1.8 beam line

AGNELLO, MICHELANGELO;BUFALINO, STEFANIA;
2012

Abstract

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 2010.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/2506314
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