Physics Letters B (Jan 2023)
Unbound states in 17C and p-sd shell-model interactions
- S. Kim,
- J.W. Hwang,
- Y. Satou,
- N.A. Orr,
- T. Nakamura,
- Y. Kondo,
- J. Gibelin,
- N.L. Achouri,
- T. Aumann,
- H. Baba,
- F. Delaunay,
- P. Doornenbal,
- N. Fukuda,
- N. Inabe,
- T. Isobe,
- D. Kameda,
- D. Kanno,
- N. Kobayashi,
- T. Kobayashi,
- T. Kubo,
- S. Leblond,
- J. Lee,
- F.M. Marqués,
- R. Minakata,
- T. Motobayashi,
- D. Murai,
- T. Murakami,
- K. Muto,
- T. Nakashima,
- N. Nakatsuka,
- A. Navin,
- S. Nishi,
- S. Ogoshi,
- H. Otsu,
- H. Sato,
- Y. Shimizu,
- H. Suzuki,
- K. Takahashi,
- H. Takeda,
- S. Takeuchi,
- R. Tanaka,
- Y. Togano,
- A.G. Tuff,
- M. Vandebrouck,
- K. Yoneda
Affiliations
- S. Kim
- Center for Exotic Nuclear Studies, Institute for Basic Science, Daejeon 34126, Republic of Korea; Department of Physics and Astronomy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea; Corresponding author.
- J.W. Hwang
- Center for Exotic Nuclear Studies, Institute for Basic Science, Daejeon 34126, Republic of Korea; Department of Physics and Astronomy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
- Y. Satou
- Department of Physics and Astronomy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea; Rare Isotope Science Project, Institute for Basic Science, 1 Gukjegwahak-ro, Yuseong-gu, Daejeon 34000, Republic of Korea
- N.A. Orr
- LPC Caen, Normandie Université, ENSICAEN, UNICAEN, CNRS/IN2P3, F-14050 Caen, France
- T. Nakamura
- Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo 152-8551, Japan
- Y. Kondo
- Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo 152-8551, Japan
- J. Gibelin
- LPC Caen, Normandie Université, ENSICAEN, UNICAEN, CNRS/IN2P3, F-14050 Caen, France
- N.L. Achouri
- LPC Caen, Normandie Université, ENSICAEN, UNICAEN, CNRS/IN2P3, F-14050 Caen, France
- T. Aumann
- Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany; ExtreMe Matter Institute EMMI and Research Division, GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany
- H. Baba
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
- F. Delaunay
- LPC Caen, Normandie Université, ENSICAEN, UNICAEN, CNRS/IN2P3, F-14050 Caen, France
- P. Doornenbal
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
- N. Fukuda
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
- N. Inabe
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
- T. Isobe
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
- D. Kameda
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
- D. Kanno
- Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo 152-8551, Japan
- N. Kobayashi
- Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo 152-8551, Japan
- T. Kobayashi
- Department of Physics, Tohoku University, Aoba, Sendai, Miyagi 980-8578, Japan
- T. Kubo
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
- S. Leblond
- LPC Caen, Normandie Université, ENSICAEN, UNICAEN, CNRS/IN2P3, F-14050 Caen, France
- J. Lee
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
- F.M. Marqués
- LPC Caen, Normandie Université, ENSICAEN, UNICAEN, CNRS/IN2P3, F-14050 Caen, France
- R. Minakata
- Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo 152-8551, Japan
- T. Motobayashi
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
- D. Murai
- Department of Physics, Rikkyo University, 3 Nishi-Ikebukuro, Toshima, Tokyo 171-8501, Japan
- T. Murakami
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
- K. Muto
- Department of Physics, Tohoku University, Aoba, Sendai, Miyagi 980-8578, Japan
- T. Nakashima
- Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo 152-8551, Japan
- N. Nakatsuka
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
- A. Navin
- GANIL, CEA/DRF-CNRS/IN2P3, F-14076 Caen Cedex 5, France
- S. Nishi
- Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo 152-8551, Japan
- S. Ogoshi
- Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo 152-8551, Japan
- H. Otsu
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
- H. Sato
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
- Y. Shimizu
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
- H. Suzuki
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
- K. Takahashi
- Department of Physics, Tohoku University, Aoba, Sendai, Miyagi 980-8578, Japan
- H. Takeda
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
- S. Takeuchi
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
- R. Tanaka
- Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo 152-8551, Japan
- Y. Togano
- ExtreMe Matter Institute EMMI and Research Division, GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany
- A.G. Tuff
- Department of Physics, University of York, Heslington, York YO10 5DD, United Kingdom
- M. Vandebrouck
- Institut de Physique Nucléaire, Université Paris-Sud, IN2P3/CNRS, 91406 Orsay, France
- K. Yoneda
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
- Journal volume & issue
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Vol. 836
p. 137629
Abstract
Unbound states in C17 were investigated via one-neutron removal from a C18 beam at an energy of 245 MeV/nucleon on a carbon target. The energy spectrum of C17, above the single-neutron decay threshold, was reconstructed using invariant mass spectroscopy from the measured momenta of the C16 fragment and neutron, and was found to exhibit resonances at Er=0.52(2), 0.77(2), 1.36(1), 1.91(1), 2.22(3) and 3.20(1) MeV. The resonance at Er=0.77(2) MeV [Ex=1.51(3) MeV] was provisionally assigned as the second 5/2+ state. The two resonances at Er=1.91(1) and 3.20(1) MeV [Ex=2.65(2) and 3.94(2) MeV] were identified, through comparison of the energies, cross sections and momentum distributions with shell-model and eikonal reaction calculations, as p-shell hole states with spin-parities 1/21− and 3/21−, respectively. A detailed comparison was made with the results obtained using a range of shell-model interactions. The YSOX shell-model Hamiltonian, the cross-shell part of which is based on the monopole-based universal interaction, was found to provide a very good description of the present results and those for the neighbouring odd-A carbon isotopes – in particular for the negative parity cross-shell states.
