1302.6876 (Boris Pritychenko)

Systematics of Evaluated Double-Beta Decay Half-Life Times    [PDF]

Boris Pritychenko

A new evaluation of 2beta-decay half lives and their systematics is presented. These data extend the previous evaluation and include the analysis of all recent measurements. The nuclear matrix elements for 2beta-decay transitions in 12 nuclei have been extracted. The recommended values are compared with the large-scale shell-model, QRPA calculations and experimental works. T1/2~1/E8 systematic trend has been observed for 128,130Te recommended values. Such trend indicates similarities for nuclear matrix elements in Te nuclei and was predicted for 2beta(2nu)-decay mode. The complete list of results is available online at http://www.nndc.bnl.gov/bbdecay/.

View original: http://arxiv.org/abs/1302.6876