Journal Article

GSI-2019-00835

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Status and future plan of the spectroscopy of pionic atoms

Watanabe, Y. N. ; Berg, G. P. A. ; Dozono, M. ; Fujioka, H. ; Fukuda, N. ; Furuno, T. ; Geissel, H.GSI* ; Hayano, R. S. ; Inabe, N. ; Itahashi, K. ; Itoh, S. ; Kameda, D. ; Kubo, T. ; Matsubara, H. ; Michimasa, S. ; Miki, K. ; Miya, H. ; Murakami, Y. ; Nakamura, M. ; Nakatsuka, N. ; Nishi, T. ; Noji, S. ; Okochi, K. ; Ota, S. ; Suzuki, H. ; Suzuki, K. ; Takaki, M. ; Takeda, H. ; Tanaka, Y. K. ; Todoroki, K. ; Tsukada, K. ; Uesaka, T. ; Weick, H.GSI* ; Yamada, H. ; Yamakami, H. ; Yoshida, K.

2014
IOP Publ. Bristol

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Please use a persistent id in citations: doi:10.1088/1742-6596/503/1/012037  doi:10.15120/GSI-2019-00835

Abstract: The spectroscopy of deeply bound pionic atoms provides a way to understand the restoration of chiral symmetry breaking at finite density. We have been performing a series of experiments of missing-mass spectroscopy of the (d,3He) reaction at RIBF to investigate pionic atoms of several Sn isotopes. As a first step, we conducted a pilot experiment to measure deeply bound pionic states of 121Sn and successfully observed the deeply bound pionic states. In addition to the experiment at RIBF, we are planning the spectroscopy of deeply bound pionic atoms in inverse kinematics and conducted a feasible study by simulations. We showed that by using a deuterium gaseous active target TPC and silicon detectors, the Q-value resolution is about 500 keV (FWHM) and the yield of the pionic 1s state is 20 counts/day, indicating the experiment is feasible.

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Contributing Institute(s):

1. FRS / SFRS Experimente (FRS)
2. SuperFRS Experiment Collaboration (SuperFRS-EC@FAIR)

Research Program(s):

1. 533 - Exotic Nuclei and Nuclear Astrophysics (ENNA) (POF2-533) (POF2-533)

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Database coverage:
; ; ; Nationallizenz ; SCOPUS

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