Two-neutrino double beta decay with sterile neutrinos
Two-neutrino double beta decay with sterile neutrinos
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带有惰性中微子的二中微子双β衰变
DOI:
10.1103/physrevd.103.055019
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发表时间:
2021
影响因子:
5
通讯作者:
Bolton P
中科院分区:
文献类型:
--
作者:
Bolton P
Usually considered a background for experimental searches for the hypothetical neutrinoless double beta decay process, two-neutrino double beta decay nevertheless provides a complementary probe of physics beyond the Standard Model. In this paper we investigate how the presence of a sterile neutrino, coupled to the Standard Model either via a left-handed or right-handed current, affects the energy distribution and angular correlation of the outgoing electrons in two-neutrino double beta decay. We pay particular attention on the behavior of the energy distribution at the kinematic end point and we estimate the current limits on the active-sterile mixing and effective right-handed coupling using current experimental data as a function of the sterile neutrino mass. We also investigate the sensitivities of future experiments. Our results complement the corresponding constraints on sterile neutrinos from single beta decay measurements in the 0.1–10 MeV mass range.
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DOI:
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