Ingredients of Nuclear Matrix Element for Two-Neutrino Double-Beta Decay of 48Ca

2014/09/30 by Y. Iwata, N. Shimizu, Y. Utsuno +3
Physics and Astronomy · #Element (criminal law) #Excitation #Matrix (chemical analysis) #Neutrino Physics Research #Neutron #Nuclear physics research studies #Nuclear shell model #Radioactive Decay and Measurement Techniques #Shell (structure) #nucl-ex #nucl-th

paper · pdf · doi:10.7566/jpscp.6.030057

published as JPS Conf. Proc. 6, 030057 (2015) · To appear in J. Phys. Soc. Conf. Proc. (ARIS2014); for ver.2, Fig.1 is revised

arxiv created 2014/11/20 · openalex publication_date 2015/06/29 · openalex created_date 2016/06/24 · arxiv updated 2019/03/26 · openalex updated_date 2026/08/05

Abstract

Large-scale shell model calculations including two major shells are carried out, and the ingredients of nuclear matrix element for two-neutrino double beta decay are investigated. Based on the comparison between the shell model calculations accounting only for one major shell (pf-shell) and those for two major shells (sdpf-shell), the effect due to the excitation across the two major shells is quantitatively evaluated.

Citations

• Shell-model calculations of two-neutrino double-β decay rates ofCa<mml:mprescripts/><mml:none/>48with the GXPF1A interaction
• The Ame2012 atomic mass evaluation
• The shell model as a unified view of nuclear structure