Neutrino accompanied beta(+/-)beta(+/-),beta(+/-)/EC and EC/EC processes within single state dominance hypothesis

摘要

The systematic study of (anti)neutrino accompanied β(±)β(±) decays and β(+)/EC, EC/EC electron capture is performed under the assumption of single intermediate nuclear state dominance. The corresponding half-lives are evaluated both for transitions to the ground state as well as to the 0(+) and 2(+) excited states of final nucleus. It is stressed that the hypothesis of single state dominance can be confirmed or ruled out by the precision measurements of the differential characteristics of the 2vβ(-)β(-) -decays of Mo-100 and Cd-116 as well as β(+)/EC electron capture in Cd-106, Ba-130 and Ce-136. © 2005 Elsevier B.V. All rights reserved.