Double beta decay and neutrino mass models
نویسندگان
چکیده
منابع مشابه
Neutrino Mass, Bulk Majoron and Neutrinoless Double Beta Decay
A new economical model for neutrino masses is proposed in the context of the brane-bulk scenarios for particle physics, where the global B−L symmetry of the standard model is broken spontaneously by a gauge singlet Higgs field in the bulk. This leads to a bulk singlet majoron whose Kaluza-Klein excitations may make it visible in neutrinoless double beta decay for some parameter range if the str...
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The marvelous recent results of neutrino oscillation experiments have given us important information on neutrino mixing. The data of solar neutrino experiments and of the KamLAND long-baseline ν̄e disappearance experiment show νe → νμ ,ντ transitions generated by the squared-mass difference ∆mSUN in one of the two ranges [1] 5.1×10−5 < ∆mSUN < 9.7×10 −5(LMA-I) , 1.2×10−4 < ∆mSUN < 1.9×10 −4(LMA-...
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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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The theoretical and experimental issues relevant to neutrinoless double-beta decay are reviewed. The impact that a direct observation of this exotic process would have on elementary particle physics, nuclear physics, astrophysics and cosmology is profound. Now that neutrinos are known to have mass and experiments are becoming more sensitive, even the non-observation of neutrinoless double-beta ...
متن کاملNeutrino mass matrix solutions and neutrinoless double beta decay
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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ژورنال
عنوان ژورنال: Journal of High Energy Physics
سال: 2015
ISSN: 1029-8479
DOI: 10.1007/jhep05(2015)092