Neutrinoless double-beta decay in covariant density functional theory

P. Ring, Jiangming Yao, L. S. Song, K. Hagino, J. Meng

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

We use covariant density functional theory beyond mean field in order to describe neutrinoless double-beta decay in a fully relativistic way. The dynamic effects of particle-number and angular-momentum conservations as well as shape fluctuations of quadrupole character are taken into account within the generator coordinate method for both initial and final nuclei. The calculations are based on the full relativistic transition operator. The nuclear matrix elements (NME's) for a large number of possible transitions are investigated. The results are compared with various non-relativistic calculations, in particular also with the density functional theory based on the Gogny force. We find that the non-relativistic approximation is justified and that the total NME's can be well approximated by the pure axial-vector coupling term. This corresponds to a considerable reduction of the computational effort.

Original languageEnglish
Title of host publicationNuclear Structure and Dynamics 2015
EditorsMatej Lipoglavsek, Matko Milin, Tamara Niksic, Suzana Szilner, Dario Vretenar
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735413283
DOIs
Publication statusPublished - 2015 Oct 15
Event3rd International Conference on Nuclear Structure and Dynamics - Portoroz, Slovenia
Duration: 2015 Jun 142015 Jun 19

Publication series

NameAIP Conference Proceedings
Volume1681
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

Other3rd International Conference on Nuclear Structure and Dynamics
CountrySlovenia
CityPortoroz
Period15/6/1415/6/19

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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