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(1405) by using hyperon spectrometer at J-PARCHwang, S.; Imai, Kenichi
JPS Conference Proceedings (Internet), 17, p.033010_1 - 033010_2, 2017/07
reactions at J-PARCSako, Hiroyuki
JPS Conference Proceedings (Internet), 17, p.063004_1 - 063004_2, 2017/07
N*, 
baryon excited states have been studied for a long time, but many of high mass states have not been found yet. Recent theoretical studies clarified that 
channels have large contributions to these high mass states. Therefore we have proposed an experiment at J-PARC (E45) to measure 
reactions. In this presentation, we will show the overview of the experiment and current status of detector developments.
-ray spectroscopy of hypernuclei; Recent results and prospect at J-PARCTamura, Hirokazu*; Ekawa, Hiroyuki; Hasegawa, Shoichi; Hayakawa, Shuhei; Hosomi, Kenji; Hwang, S.; Ichikawa, Yudai; Imai, Kenichi; Sako, Hiroyuki; Sato, Susumu; et al.
JPS Conference Proceedings (Internet), 17, p.011004_1 - 011004_11, 2017/07
hypernucleus in the J-PARC E13 experimentNakagawa, Manami*; Ekawa, Hiroyuki; Hasegawa, Shoichi; Hayakawa, Shuhei; Hosomi, Kenji; Hwang, S.; Ichikawa, Yudai; Imai, Kenichi; Sako, Hiroyuki; Sato, Susumu; et al.
JPS Conference Proceedings (Internet), 17, p.012009_1 - 012009_4, 2017/07
scattering experiment using high intensity pion beams at J-PARCMiwa, Koji*; Hasegawa, Shoichi; Hayakawa, Shuhei; Hosomi, Kenji; Imai, Kenichi; Kondo, Yasuhiro; Naruki, Megumi; Sako, Hiroyuki; Sato, Susumu; Sugimura, Hitoshi; et al.
JPS Conference Proceedings (Internet), 17, p.041002_1 - 041002_6, 2017/07
Hashimoto, Tadashi; Tanida, Kiyoshi; 45 of others*
JPS Conference Proceedings (Internet), 17, p.072001_1 - 072001_4, 2017/07
threshold via the 
reactionInoue, Kentaro*; Hashimoto, Tadashi; Tanida, Kiyoshi; 69 of others*
JPS Conference Proceedings (Internet), 17, p.072003_1 - 072003_4, 2017/07
-shell hypernucleus, 
FYang, S. B.*; Ekawa, Hiroyuki; Hasegawa, Shoichi; Hayakawa, Shuhei; Hosomi, Kenji; Hwang, S.; Ichikawa, Yudai; Imai, Kenichi; Sako, Hiroyuki; Sato, Susumu; et al.
JPS Conference Proceedings (Internet), 17, p.012004_1 - 012004_4, 2017/07
scattering experiment with the cylindrical scintillating fiber tracker and BGO calorimetersNakada, Yoshiyuki; Hasegawa, Shoichi; Hayakawa, Shuhei
no journal, ,
The proton detection system is under construction for the scattering experiment at J-PARC (J-PARC E40) for the purpose of investigating Baryon-Baryon interaction. The E40 experiment is a double-scattering experiment, that is, 
followed by 
in the liquid hydrogen (
) target. Then, the scattering events are identified by tagging the production with spectrometer systems, and by measuring the scattered proton with the proton detection system. The momentum of produced can be calculated from the momenta of 
and 
measured by the spectrometer systems. We can reconstruct scattering events using their kinematics. The scattered proton detection system (CATCH: Cylindrical Active Tracker and Calorimeter system for Hyperon scattering) for this experiment is composed of cylindrical scintillating fiber tracker (CFT) and calorimeter of bismuth orthogermanate (BGO) crystals. Enough energy resolution of CFT to separate protons and s is essential for good S/N. The construction of the 2 layer of CFT (CFT-
2 and CFT-UV2) was completed. We performed a test experiment at the Cyclotron and Radioisotope Center in Tohoku University to evaluate its performance. 
proton beams were irradiated to polyethylene (
) film target, and proton scattering data were acquired. Using the 
and 
scattering data, we evaluated proton detection efficiency of CFT-2 and -UV2 and their energy resolution.
Kimbara, Shinji; Tanida, Kiyoshi
no journal, ,
Our goal is to develop image processing method to identify daughter nucleus decayed from double-hypernuclei. To develop the method, emulsion stack was exposed to one particle with several incident angles from the normal line to the surface of the stack. We will present the result of the PID method applied for particle Z = 1
5 in nuclear emulsion at RIKEN experiment.
Sato, Susumu; Hayakawa, Shuhei
no journal, ,
We are planning the double lambda hypernuclei experiment with the emulsion at J-PARC K1.8 beamline. We did the test experiment for the Kaon beam tuning and the check of a consistency of tracks between drift chambers and an emulsion. I will show the results.
