{ "id": "1410.0789", "version": "v1", "published": "2014-10-03T09:15:54.000Z", "updated": "2014-10-03T09:15:54.000Z", "title": "3alpha clustering in the excited states of 16C", "authors": [ "T. Baba", "Y. Chiba", "M. Kimura" ], "comment": "7 pages, 5 figures", "categories": [ "nucl-th" ], "abstract": "The alpha cluster states of 16C are investigated by using the antisymmetrized molecular dynamics. It is shown that two different types of alpha cluster states exist: triangular and linear-chain states. The former has an approximate isosceles triangular configuration of alpha particles surrounded by four valence neutrons occupying sd-shell, while the latter has the linearly aligned alpha particles with two sd-shell neutrons and two pf-shell neutrons. It is found that the structure of the linear-chain state is qualitatively understood in terms of the 3/2 pi- and 1/2 sigma- molecular orbit as predicted by molecular-orbital model, but there exists non-negligible Be+alpha+2n correlation. The band-head energies of the triangular and linear-chain rotational bands are 8.0 and 15.5 MeV, and the latter is close to the He+Be threshold energy. It is also shown that the linear-chain state becomes the yrast sstate at J=10 with excitation energy 27.8 MeV owing to its very large moment-of-inertia comparable with hyperdeformation.", "revisions": [ { "version": "v1", "updated": "2014-10-03T09:15:54.000Z" } ], "analyses": { "subjects": [ "21.10.Re", "23.20.-g", "27.20.+n" ], "keywords": [ "excited states", "linear-chain state", "alpha cluster states", "3alpha clustering", "approximate isosceles triangular configuration" ], "tags": [ "journal article" ], "publication": { "doi": "10.1103/PhysRevC.90.064319", "journal": "Physical Review C", "year": 2014, "month": "Dec", "volume": 90, "number": 6, "pages": "064319" }, "note": { "typesetting": "TeX", "pages": 7, "language": "en", "license": "arXiv", "status": "editable", "inspire": 1320031, "adsabs": "2014PhRvC..90f4319B" } } }