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

Chiral symmetry and its spontaneous breaking is an essential property of the QCD vacuum and is closely related to the generation of hadron mass. J-PARC E16 experiment measures dielectron spectra in p+A collisions at 30 GeV to study the in-medium spectral change of vector mesons that signals the part...

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Bibliographic Details
Published in:	Few-body systems Vol. 64; no. 3; p. 63
Main Authors:	Aoki, Kazuya, Arimizu, Daichi, Ashikaga, Sakiko, Chang, Wen-Chen, Chujo, Tatsuya, Ebata, Kengo, En’yo, Hideto, Esumi, Shinichi, Hamagaki, Hideki, Honda, Ryotaro, Ichikawa, Masaya, Kajikawa, Shunsuke, Kanno, Koki, Kimura, Yuta, Kiyomichi, Akio, Kondo, Takehito K., Kyan, Shono, Lin, Che-Sheng, Lin, Chih-Hsun, Morino, Yuhei, Murakami, Hikari, Murakami, Tomoki N., Muto, Ryotaro, Nagafusa, Shunnosuke, Nakai, Wataru, Nakasuga, Satomi, Naruki, Megumi, Nonaka, Toshihiro, Noumi, Hiroyuki, Ochiai, Shuta, Ozawa, Kyoichiro, Sakaguchi, Takao, Sako, Hiroyuki, Sakuma, Fuminori, Sato, Susumu, Sawada, Shinya, Sekimoto, Michiko, Shigaki, Kenta, Shirotori, Kotaro, Sugimura, Hitoshi, Takahashi, Tomonori N., Takaura, Yudai, Tatsumi, Ryohei, Tsukui, Kosuke, Wang, Po-Hung, Yahiro, Kanta, Yamaguchi, Kanako H., Yokkaichi, Satoshi
Format:	Journal Article
Language:	English
Published:	Vienna Springer Vienna 11-07-2023 Springer Nature B.V
Subjects:	Atomic Broken symmetry Collaboration Commissioning Hadrons Heavy Ions Molecular Nuclear Physics Optical and Plasma Physics Particle and Nuclear Physics Physics Physics and Astronomy Proton accelerators Proton beams Quantum chromodynamics Quarks Science Symmetry Temperature Vector mesons
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Summary:	Chiral symmetry and its spontaneous breaking is an essential property of the QCD vacuum and is closely related to the generation of hadron mass. J-PARC E16 experiment measures dielectron spectra in p+A collisions at 30 GeV to study the in-medium spectral change of vector mesons that signals the partial restoration of the broken symmetry. The experiment uses the primary proton beam available at the high-momentum beam line of the J-PARC hadron experimental facility. We performed three proton-beam runs intended for beamline and detector commissioning. We are preparing for the next commissioning run in 2023 and the first physics run. We present the experimental setup, some of the expected results, preparation status, and some findings in the commissioning runs.
ISSN:	1432-5411 0177-7963 1432-5411
DOI:	10.1007/s00601-023-01828-7