Neutrino mass from laboratory: contribution of double beta decay to the neutrino mass matrix
نویسندگان
چکیده
منابع مشابه
Information about the Neutrino Mass Matrix from Double Beta Decay
Double beta decay is indispensable to solve the question of the neutrino mass matrix together with ν oscillation experiments. The most sensitive experiment since eight years — the HEIDELBERG-MOSCOW experiment in Gran-Sasso — already now, with the experimental limit of 〈mν〉 < 0.26 eV excludes degenerate ν mass scenarios allowing neutrinos as hot dark matter in the universe for the small angle MS...
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Double beta decay is indispensable to solve the question of the neutrino mass matrix together with ν oscillation experiments. Recent analysis of the most sensitive experiment since eight years the HEIDELBERG-MOSCOW experiment in Gran-Sasso yields evidence for the neutrinoless decay mode. This result is the first evidence for lepton number violation and proves the neutrino to be a Majorana parti...
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We present a determination of the neutrino mass matrix which holds for values of the neutrinoless double beta decay effective mass mee larger than the neutrino mass differences. We find eight possible solutions and discuss for each one the corresponding neutrino mass eigenvalues and zero texture. A minimal structure of the perturbations to add to these zero textures to recover the full mass mat...
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All existing data on neutrino oscillations (including those from the LSND experiment) imply a four neutrino scheme with six different allowed mass patterns. Some of the latter are shown to be disfavored by using a conservative upper bound on the ββ0ν nuclear decay rate, if neutrinos are assumed to be Majorana particles. Comparisons are also made with restrictions from tritium β-decay and cosmol...
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Assuming 3-ν mixing, massive Majorana neutrinos and neutrinoless double-beta ((ββ)0ν -) decay generated only by the (V −A) charged current weak interaction via the exchange of the three Majorana neutrinos, we briefly review the predictions for the effective Majorana mass || in (ββ)0ν -decay and reanalyse the physics potential of future (ββ)0ν -decay experiments to provide information on the ...
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ژورنال
عنوان ژورنال: Nuclear Physics B - Proceedings Supplements
سال: 2001
ISSN: 0920-5632
DOI: 10.1016/s0920-5632(01)01462-1