J. Chen, S. Wang, H. Fortune, J. Lou, Y. Ye, Z. Li, N. Michel, J. G. Li, C. Yuan, Y. Ge, Q. Li, H. Hua, D. Jiang, X. Yang, D. Pang, F. Xu, W. Zuo, J. Pei, J. Li, W. Jiang, Y. Sun, H. Zang, N. Aoi, H. Ong, E. Ideguchi, Y. Ayyad, K. Hatanaka, D. T. Tran, D. Bazin, J. Lee, Y. Zhang, J. Wu, H. Liu, C. Wen, T. Yamamoto, M. Tanaka, T. Suzuki
{"title":"Observation of the near-threshold intruder \n0−\n resonance in \nBe12","authors":"J. Chen, S. Wang, H. Fortune, J. Lou, Y. Ye, Z. Li, N. Michel, J. G. Li, C. Yuan, Y. Ge, Q. Li, H. Hua, D. Jiang, X. Yang, D. Pang, F. Xu, W. Zuo, J. Pei, J. Li, W. Jiang, Y. Sun, H. Zang, N. Aoi, H. Ong, E. Ideguchi, Y. Ayyad, K. Hatanaka, D. T. Tran, D. Bazin, J. Lee, Y. Zhang, J. Wu, H. Liu, C. Wen, T. Yamamoto, M. Tanaka, T. Suzuki","doi":"10.1103/PHYSREVC.103.L031302","DOIUrl":null,"url":null,"abstract":"A resonant state at $3.21^{+0.12}_{-0.04}$\\,MeV, located just above the one-neutron separation threshold, was observed for the first time in $^{12}$Be from the $^{11}$Be\\,$(d,p)^{12}$Be one-neutron transfer reaction in inverse kinematics. This state is assigned a spin-parity of $0^-$, according to the distorted-wave Born approximation (DWBA) and decay-width analysis. Gamow coupled-channel (GCC) and Gamow shell-model (GSM) calculations show the importance of the continuum-coupling, which dramatically influences the excitation energy and ordering of low-lying states. Various exotic structures associated with cross-shell intruding configurations in $^{12}$Be and in its isotonic nucleus $^{11}$Li are comparably discussed.","PeriodicalId":8464,"journal":{"name":"arXiv: Nuclear Experiment","volume":"118 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2021-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"arXiv: Nuclear Experiment","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1103/PHYSREVC.103.L031302","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 1
Abstract
A resonant state at $3.21^{+0.12}_{-0.04}$\,MeV, located just above the one-neutron separation threshold, was observed for the first time in $^{12}$Be from the $^{11}$Be\,$(d,p)^{12}$Be one-neutron transfer reaction in inverse kinematics. This state is assigned a spin-parity of $0^-$, according to the distorted-wave Born approximation (DWBA) and decay-width analysis. Gamow coupled-channel (GCC) and Gamow shell-model (GSM) calculations show the importance of the continuum-coupling, which dramatically influences the excitation energy and ordering of low-lying states. Various exotic structures associated with cross-shell intruding configurations in $^{12}$Be and in its isotonic nucleus $^{11}$Li are comparably discussed.
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