Precision spectroscopy of pionic atoms and chiral symmetry in nuclei

• Published in: EPJ Web of Conferences Vol. 130; p. 1017
• Main Authors: Itahashi, Kenta, Ahn, DeukSoon, Berg, Georg P.A., Dozono, Masanori, Etoh, Daijiro, Fujioka, Hiroyuki, Fukuda, Naoki, Fukunishi, Nobuhisa, Geissel, Hans, Haettner, Emma, Hashimoto, Tadashi, Hayano, Ryugo S., Hirenzaki, Satoru, Horii, Hiroshi, Ikeno, Natsumi, Inabe, Naoto, Iwasaki, Masahiko, Kameda, Daisuke, Kawase, Shouichiro, Kisamori, Keiichi, Kiyokawa, Yu, Kubo, Toshiyuki, Kusaka, Kensuke, Matsushita, Masafumi, Michimasa, Shin’ichiro, Mishima, Go, Miya, Hiroyuki, Murai, Daichi, Nagahiro, Hideko, Nishi, Takahiro, Ota, Shinsuke, Sakamoto, Naruhiko, Sekiguchi, Kimiko, Suzuki, Hiroshi, Suzuki, Ken, Takaki, Motonobu, Takeda, Hiroyuki, Tanaka, Yoshiki K., Uesaka, Tomohiro, Wada, Yasumori, Watanabe, Yuni N., Weick, Helmut, Yamakami, Hiroki, Yanagisawa, Yoshiyuki, Yoshida, Koichi
• Format: Journal Article Conference Proceeding
• Language: English
• Published: Les Ulis EDP Sciences 01.01.2016
• Subjects: Broken symmetry; Nuclear matter; Nuclei (nuclear physics); Restoration; Spectral resolution; Spectrum analysis; Strong interactions (field theory)
• ISSN: 2100-014X; 2101-6275; 2100-014X
• DOI: 10.1051/epjconf/201613001017

We conduct an experimental project to make spectroscopy of deeply bound pionic atoms systematically over wide range of nuclei. We aim at studying the strong interaction in the low energy region, which has close connection to spontaneous chiral symmetry breaking and its partial restoration in nuclear matter. First experimental results show improved spectral resolution and much better statistical sensitivity than previous experiments. Present status of the experiment is reported.