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First Observation of
Leblond, S; Marqués, F M; Gibelin, J; Orr, N A; Kondo, Y; Nakamura, T; Bonnard, J; Michel, N; Achouri, N L; Aumann, T; Baba, H; Delaunay, F; Deshayes, Q; Doornenbal, P; Fukuda, N; Hwang, J W; Inabe, N; Isobe, T; Kameda, D; Kanno, D; Kim, S; Kobayashi, N; Kobayashi, T; Kubo, T; Lee, J; Minakata, R; Motobayashi, T; Murai, D; Murakami, T; Muto, K; Nakashima, T; Nakatsuka, N; Navin, A; Nishi, S; Ogoshi, S; Otsu, H; Sato, H; Satou, Y; Shimizu, Y; Suzuki, H; Takahashi, K; Takeda, H; Takeuchi, S; Tanaka, R; Togano, Y; Tuff, A G; Vandebrouck, M; Yoneda, K.
Afiliação
  • Leblond S; LPC Caen, Normandie Université, ENSICAEN, Université de Caen, CNRS/IN2P3, F-14050, Caen, France.
  • Marqués FM; LPC Caen, Normandie Université, ENSICAEN, Université de Caen, CNRS/IN2P3, F-14050, Caen, France.
  • Gibelin J; LPC Caen, Normandie Université, ENSICAEN, Université de Caen, CNRS/IN2P3, F-14050, Caen, France.
  • Orr NA; LPC Caen, Normandie Université, ENSICAEN, Université de Caen, CNRS/IN2P3, F-14050, Caen, France.
  • Kondo Y; Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo 152-8551, Japan.
  • Nakamura T; Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo 152-8551, Japan.
  • Bonnard J; Institut de Physique Nucléaire, IN2P3-CNRS, Université Paris-Sud, Université Paris-Saclay, F-91406 Orsay Cedex, France.
  • Michel N; NSCL/FRIB Laboratory, Michigan State University, East Lansing, Michigan 48824, USA.
  • Achouri NL; School of Physics, Peking University, Beijing 100871, China.
  • Aumann T; LPC Caen, Normandie Université, ENSICAEN, Université de Caen, CNRS/IN2P3, F-14050, Caen, France.
  • Baba H; Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany.
  • Delaunay F; ExtreMe Matter Institute EMMI and Research Division, GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany.
  • Deshayes Q; RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan.
  • Doornenbal P; LPC Caen, Normandie Université, ENSICAEN, Université de Caen, CNRS/IN2P3, F-14050, Caen, France.
  • Fukuda N; LPC Caen, Normandie Université, ENSICAEN, Université de Caen, CNRS/IN2P3, F-14050, Caen, France.
  • Hwang JW; RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan.
  • Inabe N; RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan.
  • Isobe T; Department of Physics and Astronomy, Seoul National University, 599 Gwanak, Seoul 151-742, Republic of Korea.
  • Kameda D; RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan.
  • Kanno D; RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan.
  • Kim S; RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan.
  • Kobayashi N; Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo 152-8551, Japan.
  • Kobayashi T; Department of Physics and Astronomy, Seoul National University, 599 Gwanak, Seoul 151-742, Republic of Korea.
  • Kubo T; Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo 152-8551, Japan.
  • Lee J; Department of Physics, Tohoku University, Miyagi 980-8578, Japan.
  • Minakata R; RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan.
  • Motobayashi T; RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan.
  • Murai D; Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo 152-8551, Japan.
  • Murakami T; RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan.
  • Muto K; Departiment of Physics, Rikkyo University, Toshima, Tokyo 171-8501, Japan.
  • Nakashima T; Department of Physics, Kyoto University, Kyoto 606-8502, Japan.
  • Nakatsuka N; Department of Physics, Tohoku University, Miyagi 980-8578, Japan.
  • Navin A; Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo 152-8551, Japan.
  • Nishi S; Department of Physics, Kyoto University, Kyoto 606-8502, Japan.
  • Ogoshi S; GANIL, CEA/DRF-CNRS/IN2P3, F-14076 Caen Cedex 5, France.
  • Otsu H; Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo 152-8551, Japan.
  • Sato H; Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo 152-8551, Japan.
  • Satou Y; RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan.
  • Shimizu Y; RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan.
  • Suzuki H; Department of Physics and Astronomy, Seoul National University, 599 Gwanak, Seoul 151-742, Republic of Korea.
  • Takahashi K; RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan.
  • Takeda H; RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan.
  • Takeuchi S; Department of Physics, Tohoku University, Miyagi 980-8578, Japan.
  • Tanaka R; RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan.
  • Togano Y; RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan.
  • Tuff AG; Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo 152-8551, Japan.
  • Vandebrouck M; Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo 152-8551, Japan.
  • Yoneda K; ExtreMe Matter Institute EMMI and Research Division, GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany.
Phys Rev Lett ; 121(26): 262502, 2018 Dec 28.
Article em En | MEDLINE | ID: mdl-30636115
The most neutron-rich boron isotopes ^{20}B and ^{21}B have been observed for the first time following proton removal from ^{22}N and ^{22}C at energies around 230 MeV/nucleon. Both nuclei were found to exist as resonances which were detected through their decay into ^{19}B and one or two neutrons. Two-proton removal from ^{22}N populated a prominent resonancelike structure in ^{20}B at around 2.5 MeV above the one-neutron decay threshold, which is interpreted as arising from the closely spaced 1^{-},2^{-} ground-state doublet predicted by the shell model. In the case of proton removal from ^{22}C, the ^{19}B plus one- and two-neutron channels were consistent with the population of a resonance in ^{21}B 2.47±0.19 MeV above the two-neutron decay threshold, which is found to exhibit direct two-neutron decay. The ground-state mass excesses determined for ^{20,21}B are found to be in agreement with mass surface extrapolations derived within the latest atomic-mass evaluations.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Tipo de estudo: Prognostic_studies Idioma: En Revista: Phys Rev Lett Ano de publicação: 2018 Tipo de documento: Article País de afiliação: França País de publicação: Estados Unidos
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Tipo de estudo: Prognostic_studies Idioma: En Revista: Phys Rev Lett Ano de publicação: 2018 Tipo de documento: Article País de afiliação: França País de publicação: Estados Unidos