Unbound states in 17C and p-sd shell-model interactions

被引：2

作者：

Kim, S. ^{[1
,2
]}

Hwang, J. W. ^{[1
,2
]}

Satou, Y. ^{[2
,3
]}

Orr, N. A. ^{[4
]}

Nakamura, T. ^{[5
]}

Kondo, Y. ^{[5
]}

GIbelin, J. ^{[4
]}

Achouri, N. L. ^{[4
]}

Aumann, T. ^{[6
,7
,8
]}

Baba, H. ^{[9
]}

Delaunay, F. ^{[4
]}

Doornenbal, P. ^{[9
]}

Fukuda, N. ^{[9
]}

Inabe, N. ^{[9
]}

Isobe, T. ^{[9
]}

Kameda, D. ^{[9
]}

Kanno, D. ^{[5
]}

Kobayashi, N. ^{[5
]}

Kubo, T. ^{[9
]}

Leblond, S. ^{[4
]}

Lee, J. ^{[9
,16
]}

Marques, F. M. ^{[4
]}

Minakata, R. ^{[5
]}

Motobayashi, T. ^{[9
,10
,12
]}

Murai, D. ^{[11
]}

Murakami, T. ^{[12
]}

Muto, K. ^{[10
]}

Nakashima, T. ^{[5
]}

Nakatsuka, N. ^{[12
]}

Navin, A. ^{[13
]}

Nishi, S. ^{[5
]}

Ogoshi, S. ^{[5
]}

Otsu, H. ^{[9
]}

Satoh, H. ^{[9
]}

Shimizu, Y. ^{[9
]}

Suzuki, H. ^{[9
]}

Takahashi, K. ^{[10
]}

Takeda, H. ^{[9
]}

Takeuchi, S. ^{[9
]}

Tanaka, R. ^{[5
]}

Togano, Y. ^{[7
,8
]}

Tuff, A. G. ^{[14
]}

Vandebrouck, M. ^{[15
]}

Yoneda, K. ^{[9
]}

机构：

[1] Inst for Basic Sci Korea, Ctr Exot Nucl Studies, Daejeon 34126, South Korea

[2] Seoul Natl Univ, Dept Phys & Astron, 1 Gwanak Ro, Seoul 08826, South Korea

[3] Inst for Basic Sci Korea, Rare Isotope Sci Project, 1 Gukjegwahak Ro, Daejeon 34000, South Korea

[4] Normandie Univ, LPC Caen, ENSICAEN, UNICAEN,CNRS,IN2P3, F-14050 Caen, France

[5] Tokyo Inst Technol, Dept Phys, 2-12-1 O Okayama,Meguro, Tokyo 1528551, Japan

[6] Tech Univ Darmstadt, Inst Kernphys, D-64289 Darmstadt, Germany

[7] GSI Helmholtzzentrum Schwerionenforsch GmbH, ExtreMe Matter Inst EMMI, D-64291 Darmstadt, Germany

[8] GSI Helmholtzzentrum Schwerionenforsch GmbH, Div Res, D-64291 Darmstadt, Germany

[9] RIKEN Nishina Ctr, Hirosawa 2-1, Wako, Saitama 3510198, Japan

[10] Tohoku Univ, Dept Phys, Aoba, Sendai, Miyagi 9808578, Japan

[11] Rikkyo Univ, Dept Phys, 3 Nishi Ikebukuro,Toshima, Tokyo 1718501, Japan

[12] Kyoto Univ, Dept Phys, Kyoto 6068502, Japan

[13] CEA, CNRS, IN2P3, GANIL,DRF, F-14076 Caen 5, France

[14] Univ York, Dept Phys, York YO10 5DD, N Yorkshire, England

[15] Univ Paris Sud, Inst Phys Nucl, IN2P3, CNRS, F-91406 Orsay, France

[16] Univ Hong Kong, Dept Phys, Pokfulam Rd, Hong Kong, Peoples R China

来源：

PHYSICS LETTERS B | 2023年 / 836卷

关键词：

One-neutron removal reaction; Neutron-rich carbon isotopes; Cross-shell states; Shell-model Hamiltonian; EXCITED-STATES; LIFETIME MEASUREMENTS; NEUTRON KNOCKOUT; ENERGY-LEVELS; LIGHT-NUCLEI; C-17; HALO; REMOVAL; RIKEN; CODE;

D O I：

10.1016/j.physletb.2022.137629

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Unbound states in 17C were investigated via one-neutron removal from a 18C beam at an energy of 245 MeV/nucleon on a carbon target. The energy spectrum of 17C, above the single-neutron decay threshold, was reconstructed using invariant mass spectroscopy from the measured momenta of the 16C 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 1/2-1 and 3/2-1 , 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 monopolebased 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. (c) 2022 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). Funded by SCOAP3.

引用

页数：7

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