Nuclear matrix elements for 0{nu}{beta}{beta} decay with improved short-range correlations
- Department of Physics, University of Jyvaeskylae, P.O. Box 35, FIN-40351 Jyvaeskylae (Finland)
Nuclear matrix elements for the neutrinoless double beta minus (0{nu}{beta}{sup -}{beta}{sup -}) decays of all interesting (nearly) spherical nuclei are calculated for the light-neutrino exchange mechanism by using the proton-neutron quasiparticle random-phase approximation (pnQRPA) with a realistic nucleon-nucleon force. The finite size of a nucleon, the higher-order terms of nucleonic weak currents, and the nucleon-nucleon short-range correlations (s.r.c) are taken into account. The s.r.c. are computed by the use of the unitary correlation operator method (UCOM), superior to the traditional Jastrow method. The UCOM computed matrix elements turn out to be considerably larger than the Jastrow computed ones.
- OSTI ID:
- 21036007
- Journal Information:
- AIP Conference Proceedings, Vol. 942, Issue 1; Conference: MEDEX'07: Workshop on calculation of double-beta-decay matrix elements, Prague (Czech Republic), 11-14 Jun 2007; Other Information: DOI: 10.1063/1.2805109; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
Similar Records
Improved short-range correlations and 0{nu}{beta}{beta} nuclear matrix elements of {sup 76}Ge and {sup 82}Se
0{nu}{beta}{beta}-decay nuclear matrix elements with self-consistent short-range correlations