Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2011-04-11
Eur. Phys. J. C 71 (2011) 1754
Physics
High Energy Physics
High Energy Physics - Phenomenology
Some changes in sections I, II, IV, and V; two new figures; additional references
Scientific paper
From the standard seesaw mechanism of neutrino mass generation, which is based on the assumption that the lepton number is violated at a large (~10exp(+15) GeV) scale, follows that the neutrinoless double-beta decay is ruled by the Majorana neutrino mass mechanism. Within this notion, for the inverted neutrino-mass hierarchy we derive allowed ranges of half-lives of the neutrinoless double-beta decay for nuclei of experimental interest with different sets of nuclear matrix elements. The present-day results of the calculation of the neutrinoless double-beta decay nuclear matrix elements are briefly discussed. We argue that if neutrinoless double-beta decay will be observed in future experiments sensitive to the effective Majorana mass in the inverted mass hierarchy region, a comparison of the derived ranges with measured half-lives will allow us to probe the standard seesaw mechanism assuming that future cosmological data will establish the sum of neutrino masses to be about 0.2 eV.
Bilenky Samoil M.
Faessler Amand
Potzel Walter
Simkovic Fedor
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