{ "id": "1604.06297", "version": "v1", "published": "2016-04-21T13:32:04.000Z", "updated": "2016-04-21T13:32:04.000Z", "title": "Octupole correlations in low-lying states of 150Nd and 150Sm and their impact on neutrinoless double-beta decay", "authors": [ "J. M. Yao", "J. Engel" ], "comment": "7 pages, 5 figures", "categories": [ "nucl-th", "nucl-ex" ], "abstract": "We present a generator-coordinate calculation, based on a relativistic energy-density functional, of the low-lying spectra in the isotopes $^{150}$Nd and $^{150}$Sm and of the nuclear matrix element that governs the neutrinoless double-beta decay of the first isotope to the second. We carefully examine the impact of octupole correlations on both nuclear structure and the double-beta decay matrix element. Octupole correlations turn out to reduce quadrupole collectivity in both nuclei. Shape fluctuations, however, dilute the effects of octupole deformation on the double-beta decay matrix element, so that the overall octupole-induced quenching is only about 7\\%.", "revisions": [ { "version": "v1", "updated": "2016-04-21T13:32:04.000Z" } ], "analyses": { "keywords": [ "neutrinoless double-beta decay", "double-beta decay matrix element", "low-lying states", "relativistic energy-density functional", "reduce quadrupole collectivity" ], "note": { "typesetting": "TeX", "pages": 7, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2016arXiv160406297Y" } } }