Experimental Study of In-medium Spectral Change of Vector Mesons at J-PARC

• DOI: 10.1007/s00601-023-01828-7
• Publication Date: 2023-07-11T10:02:36Z
• Authors: Kazuya Aoki; Daichi Arimizu; Sakiko Ashikaga; Wen-Chen Chang; Tatsuya Chujo; Kengo Ebata; Hideto En’yo; Shinichi Esumi; Hideki Hamagaki; Ryotaro Honda; Masaya Ichikawa; Shunsuke Kajikawa; Koki Kanno; Yuta Kimura; Akio Kiyomichi; Takehito K. Kondo; Shono Kyan; Che-Sheng Lin; Chih-Hsun Lin; Yuhei Morino; Hikari Murakami; Tomoki N. Murakami; Ryotaro Muto; Shunnosuke Nagafusa; Wataru Nakai; Satomi Nakasuga; Megumi Naruki; Toshihiro Nonaka; Hiroyuki Noumi; Shuta Ochiai; Kyoichiro Ozawa; Takao Sakaguchi; Hiroyuki Sako; Fuminori Sakuma; Susumu Sato; Shinya Sawada; Michiko Sekimoto; Kenta Shigaki; Kotaro Shirotori; Hitoshi Sugimura; Tomonori N. Takah...; Yudai Takaura; Ryohei Tatsumi; Kosuke Tsukui; Po-Hung Wang; Kanta Yahiro; Kanako H. Yamaguchi; Satoshi Yokkaichi
• Keywords: Momentum (technical analysis); J-PARC

Abstract Chiral symmetry and its spontaneous breaking is an essential property of the QCD vacuum closely related to generation hadron mass. J-PARC E16 experiment measures dielectron spectra in p+A collisions at 30 GeV study in-medium spectral change vector mesons that signals partial restoration broken symmetry. The uses primary proton beam available high-momentum line experimental facility. We performed three proton-beam runs intended for beamline detector commissioning. are preparing next commissioning run 2023 first physics run. present setup, some expected results, preparation status, findings runs.