{ "id": "1209.6567", "version": "v1", "published": "2012-09-28T16:46:08.000Z", "updated": "2012-09-28T16:46:08.000Z", "title": "Nonaxial-octupole Y_{32} correlations in N = 150 isotones from multidimensional constrained covariant density functional theories", "authors": [ "Jie Zhao", "Bing-Nan Lu", "En-Guang Zhao", "Shan-Gui Zhou" ], "comment": "5 pages, 2 figures", "journal": "Phys. Rev. C86 (2012) 057304--4", "doi": "10.1103/PhysRevC.86.057304", "categories": [ "nucl-th", "nucl-ex" ], "abstract": "The non-axial reflection-asymmetric $\\beta_{32}$ shape in some transfermium nuclei with N=150, namely $^{246}$Cm, $^{248}$Cf, $^{250}$Fm, and $^{252}$No are investigated with multidimensional constrained covariant density functional theories. By using the density-dependent point coupling covariant density functional theory with the parameter set DD-PC1 in the particle-hole channel, it is found that, for the ground states of $^{248}$Cf and $^{250}$Fm, the non-axial octupole deformation parameter $\\beta_{32} > 0.03$ and the energy gain due to the $\\beta_{32}$ distortion is larger than 300 keV. In $^{246}$Cm and $^{252}$No, shallow $\\beta_{32}$ minima are found. The occurrence of the non-axial octupole $\\beta_{32}$ correlations is mainly from a pair of neutron orbitals $[734]9/2$ ($\\nu j_{15/2}$) and $[622]5/2$ ($\\nu g_{9/2}$) which are close to the neutron Fermi surface and a pair of proton orbitals $[521]3/2$ ($\\pi f_{7/2}$) and $[633]7/2$ ($\\pi i_{13/2}$) which are close to the proton Fermi surface. The dependence of the non-axial octupole effects on the form of energy density functional and on the parameter set is also studied.", "revisions": [ { "version": "v1", "updated": "2012-09-28T16:46:08.000Z" } ], "analyses": { "subjects": [ "21.10.Dr", "27.90.+b", "21.60.Jz" ], "keywords": [ "covariant density functional theory", "multidimensional constrained covariant density functional", "constrained covariant density functional theories", "coupling covariant density functional", "point coupling covariant density" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Physical Review C", "year": 2012, "month": "Nov", "volume": 86, "number": 5, "pages": "057304" }, "note": { "typesetting": "TeX", "pages": 5, "language": "en", "license": "arXiv", "status": "editable", "inspire": 1188708, "adsabs": "2012PhRvC..86e7304Z" } } }