Neutrinoless double-electron capture
نویسندگان
چکیده
منابع مشابه
Nuclear-atomic state degeneracy in neutrinoless double-electron capture: A unique test for a Majorana-neutrino
There is a general consensus that detection of a double-beta decay without any neutrino involved would mark physics beyond the Standard Model. This is because in such decay modes lepton number conservation would be violated and the neutrino would reveal itself as being its own antiparticle. It is this particle-antiparticle duality which makes the neutrino of Majorana type. So far, the experimen...
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Several experiments were performed during last years at underground (3600 m w.e.) Laboratori Nazionali del Gran Sasso (LNGS) of the INFN (Italy) to search for resonant 2ε0ν captures in Ru, Cd, Ce, Dy, Dy, W, Os, Pt with the help of HP Ge semiconductor detectors, and ZnWO4 and 106CdWO4 crystal scintillators. No evidence for r-2ε0ν decays was found, and only T1/2 limits were established in the ra...
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The status of the search for neutrinoless double beta decay is reviewed. The effort to reach the sensitivity needed to cover the effective Majorana neutrino mass corresponding to the degenerate and inverted mass hierarchy is described. Various issues concerning the theory (and phenomenology) of the relation between the 0νββ decay rate and the absolute neutrino mass scale are discussed, in parti...
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This paper introduces the neutrinoless double-beta decay the rarest nuclear weak process and describes the status of the research for this transition, both from the point of view of theoretical nuclear physics and in terms of the present and future experimental scenarios. Implications of this phenomenon on crucial aspects of particle physics are briefly discussed. The calculations of the nuclea...
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A brief overview is given of theoretical analyses with neutrinoless double beta decay experiments. Theoretical bounds on the “observable”, 〈m〉ββ , are presented. By using experimental bounds on 〈m〉ββ , allowed regions are obtained on the ml-cos 2θ12 plane, where ml stands for the lightest neutrino mass. It is shown that Majorana neutrinos can be excluded by combining possible results of future ...
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ژورنال
عنوان ژورنال: Physical Review C
سال: 2014
ISSN: 0556-2813,1089-490X
DOI: 10.1103/physrevc.89.064319