Mechanisms of neutrinoless double-beta decay: A comparative analysis of several nucleiстатья
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Дата последнего поиска статьи во внешних источниках: 22 февраля 2016 г.
Аннотация:The neutrinoless double beta decay of several nuclei that are of interest from the experimental point of view (76^Ge, 82^Se, 100^Mo, 130^Te, and 136^Xe) is investigated on the basis of a general Lorentzinvariant effective Lagrangian describing physics effects beyond the Standard Model. The half-lives and angular-correlation coefficients for electrons are calculated for various decay mechanisms associated, in particular, with the exchange of Majorana neutrinos, supersymmetric particles (with R-parity violation), leptoquarks, and right-handed W R bosons. The effect of theoretical uncertainties in the values of relevant nuclear matrix elements on decay features is considered.