{ "id": "1203.1582", "version": "v1", "published": "2012-03-07T19:41:44.000Z", "updated": "2012-03-07T19:41:44.000Z", "title": "Cluster structures in $^{11}$B", "authors": [ "Tadahiro Suhara", "Yoshiko Kanada-En'yo" ], "comment": "13 pages, 9 figures. arXiv admin note: text overlap with arXiv:1004.4954", "categories": [ "nucl-th" ], "abstract": "Structures of excited states in $^{11}$B are investigated with a method of $\\beta$-$\\gamma$ constraint antisymmetrized molecular dynamics in combination with the generator coordinate method. Various excited states with developed cluster core structures are suggested in positive- and negative-parity states. For negative-parity states, we suggest a band with a $2\\alpha+t$ cluster structure. This band starts from the $3/2^{-}_{3}$ state and can correspond to the experimental band observed recently. In positive-parity states, two $\\alpha$ core cluster structures with surrounding nucleons are found. A $K^\\pi=1/2^+$ band is suggested to be constructed from a remarkably developed cluster structure with a large prolate deformation. We discuss features of the cluster structure in association with molecular orbital structures of $^{10}$Be.", "revisions": [ { "version": "v1", "updated": "2012-03-07T19:41:44.000Z" } ], "analyses": { "subjects": [ "27.20.+n", "02.70.Ns", "21.10.Ky", "21.60.-n" ], "keywords": [ "negative-parity states", "developed cluster core structures", "generator coordinate method", "constraint antisymmetrized molecular dynamics", "core cluster structures" ], "tags": [ "journal article" ], "publication": { "doi": "10.1103/PhysRevC.85.054320", "journal": "Physical Review C", "year": 2012, "month": "May", "volume": 85, "number": 5, "pages": "054320" }, "note": { "typesetting": "TeX", "pages": 13, "language": "en", "license": "arXiv", "status": "editable", "inspire": 1093131, "adsabs": "2012PhRvC..85e4320S" } } }