Bulletin of the American Physical Society
6th Joint Meeting of the APS Division of Nuclear Physics and the Physical Society of Japan
Sunday–Friday, November 26–December 1 2023; Hawaii, the Big Island
Session E05: Minisymposium: Baryon-Baryon Interactions Involving Strangeness I
7:00 PM–9:15 PM,
Wednesday, November 29, 2023
Hilton Waikoloa Village
Room: Queens 4
Chair: Satoshi Nakamura
Abstract: E05.00008 : Kaon identification in Λ hypernuclear spectroscopy with S-2S at J-PARC (E94 Experiment)*
9:00 PM–9:15 PM
Presenter:
Daigo Watanabe
(Tohoku University)
Authors:
Daigo Watanabe
(Tohoku University)
Patrick Achenbach
(Jefferson Lab/Jefferson Science Associates)
Jung Keun Ahn
(Korea University)
Darko Androić
(University of Zagreb)
Arshak Asaturyan
(UNCW)
Elena Botta
(INFN Sezione di Torino)
Masroor Bukhari
(Jazan University)
Alexandre Camsonne
(Jefferson Lab/Jefferson Science Associates)
Silviu Covrig
(JLab)
Kengo Ebata
(Kyoto Univ, JAEA)
Alessandro Feliciello
(INFN Sezione di Torino)
Hiroyuki Fujioka
(Tokyo Institute of Technology)
Manami Fujita
(JAEA)
Franco Garibaldi
(INFN, Sezione di Roma)
Toshiyuki Gogami
(Kyoto Univ)
Tomoyuki Hasegawa
(Kitasato University)
Shuhei H Hayakawa
(Tohoku University)
Takeshi K Harada
(Kyoto University)
Ryotaro Honda
(KEK)
Yudai Ichikawa
(JAEA)
Tatsuhiro Ishige
(Tohoku University)
Kento Kamada
(Tohoku University)
Shin Hyung Kim
(Japan Atomic Energy Agency)
Pete C Markowitz
(Florida International University)
Koji Miwa
(Tohoku University)
Hamlet Mkrtchyan
(A.I. Alikhanian National Science Laboratory)
Sho Nagao
(The University of Tokyo)
Satoshi N Nakamura
(The University of Tokyo)
Takuya Nanamura
(JAEA)
Tomofumi Nagae
(Kyoto Univ)
KAZUKI OKUYAMA
(Tohoku University)
Fumiya Oura
(Tohoku University)
Josef Pochodzalla
(Johannes Gutenberg-University Mainz)
Albert Shahinyan
(A.I. Alikhanian National Science Laboratory)
Simon Sirca
(University of Ljubljana)
Chesu Son
(Tohoku University)
Shuji Takahashi
(Kyoto University)
Hirokazu Tamura
(Tohoku University)
Kiyoshi Tanida
(Japan Atomic Energy Agency)
Mifuyu Ukai
(KEK)
Guido M Urciuoli
(INFN, Sezione di Roma)
Takeshi O Yamamoto
(JAEA)
Collaboration:
J-PARC E94 Collaboration
Two types of Cherenkov detector, aerogel and water Cherenkov counters (AC, WC) are equipped in S-2S for an identification of K+ (KID). Replacing WC by another Cherenkov detector is one of options to improve the KID performance in the E94 experiment. We obtained data of 1.4-GeV/c protons on WC in a commissioning run of the J-PARC E70 experiment. The commissioning data are useful for the K-proton separation study by WC in E94 because the number of photoelectrons is comparable to that of K+ at 0.72 GeV/c.
In the talk, kaon identification by Cherenkov counters in E94 is going to be introduced along with a performance result of the counters in the commissioning run in June 2023.
*This work was supported by JSPS KAKENHI grants nos.JP18H05459, 23H00114.
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