Archivio Istituzionale della RicercaHigh-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., T., S., A., Agnello, M., K., A., O., A., B., B., E., B., Bufalino, S., N., C., P., E., A., F., J., F., H., F., S., H., E., H., R., H., K., H., Y., I., Y., I., M., I., et al.. - 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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https://hdl.handle.net/11583/2506314
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