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Spectroscopy of Pionic Atoms in
Nishi, T; Itahashi, K; Berg, G P A; Fujioka, H; Fukuda, N; Fukunishi, N; Geissel, H; Hayano, R S; Hirenzaki, S; Ichikawa, K; Ikeno, N; Inabe, N; Itoh, S; Iwasaki, M; Kameda, D; Kawase, S; Kubo, T; Kusaka, K; Matsubara, H; Michimasa, S; Miki, K; Mishima, G; Miya, H; Nagahiro, H; Nakamura, M; Noji, S; Okochi, K; Ota, S; Sakamoto, N; Suzuki, K; Takeda, H; Tanaka, Y K; Todoroki, K; Tsukada, K; Uesaka, T; Watanabe, Y N; Weick, H; Yamakami, H; Yoshida, K.
Afiliación
  • Nishi T; Department of Physics, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, 113-0033 Tokyo, Japan.
  • Itahashi K; Nishina Center for Accelerator-Based Science, RIKEN, 2-1 Hirosawa, Wako, 351-0198 Saitama, Japan.
  • Berg GPA; Nishina Center for Accelerator-Based Science, RIKEN, 2-1 Hirosawa, Wako, 351-0198 Saitama, Japan.
  • Fujioka H; Department of Physics and the Joint Institute for Nuclear Astrophysics Center for the Evolution of the Elements, University of Notre Dame, Notre Dame, Indiana 46556, USA.
  • Fukuda N; Department of Physics, Kyoto University, Kitashirakawa-Oiwakecho, Sakyo-ku, Kyoto, 606-8502 Kyoto, Japan.
  • Fukunishi N; Nishina Center for Accelerator-Based Science, RIKEN, 2-1 Hirosawa, Wako, 351-0198 Saitama, Japan.
  • Geissel H; Nishina Center for Accelerator-Based Science, RIKEN, 2-1 Hirosawa, Wako, 351-0198 Saitama, Japan.
  • Hayano RS; GSI Helmholtzzentrum für Schwerionenforschung GmbH, Planckstrasse 1, D-64291 Darmstadt, Germany.
  • Hirenzaki S; Department of Physics, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, 113-0033 Tokyo, Japan.
  • Ichikawa K; Department of Physics, Nara Women's University, Kita-Uoya Nishimachi, Nara, 630-8506 Nara, Japan.
  • Ikeno N; Department of Physics, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, 113-0033 Tokyo, Japan.
  • Inabe N; Department of Life and Environmental Agricultural Sciences, Faculty of Agriculture, Tottori University, 4-101 Koyamacho-Minami, Tottori, 680-8551 Tottori, Japan.
  • Itoh S; Nishina Center for Accelerator-Based Science, RIKEN, 2-1 Hirosawa, Wako, 351-0198 Saitama, Japan.
  • Iwasaki M; Department of Physics, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, 113-0033 Tokyo, Japan.
  • Kameda D; Nishina Center for Accelerator-Based Science, RIKEN, 2-1 Hirosawa, Wako, 351-0198 Saitama, Japan.
  • Kawase S; Nishina Center for Accelerator-Based Science, RIKEN, 2-1 Hirosawa, Wako, 351-0198 Saitama, Japan.
  • Kubo T; Center for Nuclear Study, The University of Tokyo, 2-1 Hirosawa, Wako, 351-0198 Saitama, Japan.
  • Kusaka K; Nishina Center for Accelerator-Based Science, RIKEN, 2-1 Hirosawa, Wako, 351-0198 Saitama, Japan.
  • Matsubara H; Nishina Center for Accelerator-Based Science, RIKEN, 2-1 Hirosawa, Wako, 351-0198 Saitama, Japan.
  • Michimasa S; Center for Nuclear Study, The University of Tokyo, 2-1 Hirosawa, Wako, 351-0198 Saitama, Japan.
  • Miki K; Center for Nuclear Study, The University of Tokyo, 2-1 Hirosawa, Wako, 351-0198 Saitama, Japan.
  • Mishima G; Department of Physics, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, 113-0033 Tokyo, Japan.
  • Miya H; Department of Physics, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, 113-0033 Tokyo, Japan.
  • Nagahiro H; Nishina Center for Accelerator-Based Science, RIKEN, 2-1 Hirosawa, Wako, 351-0198 Saitama, Japan.
  • Nakamura M; Department of Physics, Nara Women's University, Kita-Uoya Nishimachi, Nara, 630-8506 Nara, Japan.
  • Noji S; Nishina Center for Accelerator-Based Science, RIKEN, 2-1 Hirosawa, Wako, 351-0198 Saitama, Japan.
  • Okochi K; Department of Physics, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, 113-0033 Tokyo, Japan.
  • Ota S; Department of Physics, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, 113-0033 Tokyo, Japan.
  • Sakamoto N; Center for Nuclear Study, The University of Tokyo, 2-1 Hirosawa, Wako, 351-0198 Saitama, Japan.
  • Suzuki K; Nishina Center for Accelerator-Based Science, RIKEN, 2-1 Hirosawa, Wako, 351-0198 Saitama, Japan.
  • Takeda H; Stefan Meyer Institute for Subatomic Physics, Austrian Academy of Sciences, Boltzmanngasse 3, A-1090 Vienna, Austria.
  • Tanaka YK; Nishina Center for Accelerator-Based Science, RIKEN, 2-1 Hirosawa, Wako, 351-0198 Saitama, Japan.
  • Todoroki K; Department of Physics, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, 113-0033 Tokyo, Japan.
  • Tsukada K; Department of Physics, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, 113-0033 Tokyo, Japan.
  • Uesaka T; Nishina Center for Accelerator-Based Science, RIKEN, 2-1 Hirosawa, Wako, 351-0198 Saitama, Japan.
  • Watanabe YN; Nishina Center for Accelerator-Based Science, RIKEN, 2-1 Hirosawa, Wako, 351-0198 Saitama, Japan.
  • Weick H; Department of Physics, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, 113-0033 Tokyo, Japan.
  • Yamakami H; GSI Helmholtzzentrum für Schwerionenforschung GmbH, Planckstrasse 1, D-64291 Darmstadt, Germany.
  • Yoshida K; Department of Physics, Kyoto University, Kitashirakawa-Oiwakecho, Sakyo-ku, Kyoto, 606-8502 Kyoto, Japan.
Phys Rev Lett ; 120(15): 152505, 2018 Apr 13.
Article en En | MEDLINE | ID: mdl-29756883
We observed the atomic 1s and 2p states of π^{-} bound to ^{121}Sn nuclei as distinct peak structures in the missing mass spectra of the ^{122}Sn(d,^{3}He) nuclear reaction. A very intense deuteron beam and a spectrometer with a large angular acceptance let us achieve a potential of discovery, which includes the capability of determining the angle-dependent cross sections with high statistics. The 2p state in a Sn nucleus was observed for the first time. The binding energies and widths of the pionic states are determined and found to be consistent with previous experimental results of other Sn isotopes. The spectrum is measured at finite reaction angles for the first time. The formation cross sections at the reaction angles between 0° and 2° are determined. The observed reaction-angle dependence of each state is reproduced by theoretical calculations. However, the quantitative comparison with our high-precision data reveals a significant discrepancy between the measured and calculated formation cross sections of the pionic 1s state.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Phys Rev Lett Año: 2018 Tipo del documento: Article País de afiliación: Japón Pais de publicación: Estados Unidos
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Phys Rev Lett Año: 2018 Tipo del documento: Article País de afiliación: Japón Pais de publicación: Estados Unidos