The first precision measurement of deeply bound pionic states in 121Sn

Takahiro Nishi; Georg P. A. Berg; Masanori Dozono; Hiroyuki Fujioka; Naoki Fukuda; Tatsuya Furuno; Hans Geissel; Ryugo S. Hayano; Naoto Inabe; Kenta Itahashi; Satoshi Itoh; Daisuke Kameda; Toshiyuki Kubo; Hiroaki Matsubara; Shin’ichiro Michimasa; Kenjiro Miki; Hiroyuki Miya; Yohei Murakami; Masaki Nakamura; Noritsugu Nakatsuka; Shumpei Noji; Kota Okochi; Shinsuke Ota; Hiroshi Suzuki; Ken Suzuki; Motonobu Takaki; Hiroyuki Takeda; Yoshiki K. Tanaka; Koichi Todoroki; Kyo Tsukada; Tomohiro Uesaka; Yuni N. Watanabe; Helmut Weick; Hiroyuki Yamada; Koichi Yoshida

doi:10.1051/epjconf/20146609014

All issues

Volume 66 (2014)

EPJ Web of Conferences, 66 (2014) 09014

Abstract

Open Access

Issue		EPJ Web of Conferences Volume 66, 2014 INPC 2013 – International Nuclear Physics Conference


Article Number		09014
Number of page(s)		4
Section		Hadrons in Nuclei
DOI		https://doi.org/10.1051/epjconf/20146609014
Published online		20 March 2014

EPJ Web of Conferences 66, 09014 (2014)
https://doi.org/10.1051/epjconf/20146609014

The first precision measurement of deeply bound pionic states in ¹²¹Sn

Takahiro Nishi¹^a, Georg P. A. Berg², Masanori Dozono³, Hiroyuki Fujioka⁴, Naoki Fukuda³, Tatsuya Furuno⁴, Hans Geissel⁵, Ryugo S. Hayano¹, Naoto Inabe³, Kenta Itahashi³, Satoshi Itoh¹, Daisuke Kameda³, Toshiyuki Kubo³, Hiroaki Matsubara⁶, Shin’ichiro Michimasa⁷, Kenjiro Miki⁸, Hiroyuki Miya⁷, Yohei Murakami¹, Masaki Nakamura³, Noritsugu Nakatsuka³, Shumpei Noji¹, Kota Okochi¹, Shinsuke Ota⁷, Hiroshi Suzuki³, Ken Suzuki⁹, Motonobu Takaki⁷, Hiroyuki Takeda³, Yoshiki K. Tanaka¹, Koichi Todoroki¹, Kyo Tsukada¹⁰, Tomohiro Uesaka³, Yuni N. Watanabe¹, Helmut Weick⁵, Hiroyuki Yamada¹ and Koichi Yoshida³

¹ Department of Physics, University of Tokyo, Tokyo, 113-0033, Japan
² JINA and Department of Physics, University of Notre Dame, Indiana, 46556, USA
³ Nishina Center for Accelerator-Based Science, RIKEN, Saitama, 351-0198, Japan
⁴ Department of Physics, Kyoto University, Kyoto, 606-8502, Japan
⁵ GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany
⁶ National Institute of Radiological Sciences (NIRS), Chiba 263-8555, Japan
⁷ Center of Nuclear Study, University of Tokyo, Tokyo, 113-0033, Japan
⁸ Research Center for Nuclear Physics, Osaka University, 567-0047 Osaka, Japan
⁹ Stefan-Meyer-Institut für subatomare Physik, 1090, Vienna, Austria
¹⁰ Department of Physics, Tohoku University, 980-8578, Sendai, Japan

^a e-mail: nishi@nucl.phys.s.u-tokyo.ac.jp

Published online: 20 March 2014

Abstract

We performed a precision missing-mass spectroscopy experiment of the deeply bound pionic states in a ¹²¹Sn atom using the (d,³He) reaction near the π⁻ emission threshold. The experiment serves as a pilot experiment for our new ‘pionic atom factory project’ at RIBF, which aims at precision spectroscopy of the energy spectrum of the pionic atom of isotopes and isotones. The result of the pilot experiment demonstrated the potentiality of BigRIPS and of the RIBF facilities for the project. The current status of the analysis is reported.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License 2.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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