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Enhanced electromagnetic transition dipole moments and radiative decays of massive Majorana neutrinos thanks to the seesaw-induced non-unitary effects
Xing ZZ(邢志忠); 周也铃;Xing, ZZ; Zhou, YL
2012
Source PublicationPHYSICS LETTERS B
Volume715Issue:1-3Pages:178-182
AbstractIn an extension of the standard electroweak theory where the phenomenon of lepton flavor mixing is described by a 3 x 3 unitary matrix V, the electric and magnetic dipole moments of three active neutrinos are suppressed not only by their tiny masses but also by the Glashow-Iliopoulos-Maiani (GIM) mechanism. We show that it is possible to lift the GIM suppression if the canonical seesaw mechanism of neutrino mass generation, which allows V to be slightly non-unitary, is taken into account. In view of current experimental constraints on the non-unitarity of V, we find that the effective electromagnetic transition dipole moments of three light Majorana neutrinos and the rates of their radiative decays can be maximally enhanced by a factor of O(10(2)) and a factor of O(10(4)), respectively. This novel observation reveals an intrinsic and presumably significant correlation between the electromagnetic properties of massive neutrinos and the origin of their small masses. (c) 2012 Elsevier B.V. All rights reserved.
Subject AreaPhysics
DOI10.1016/j.physletb.2012.07.043
Indexed BySCI ; INSPIREHEP ; ADS
WOS IDWOS:000308519000024
ADS Bibcode2012PhLB..715..178X
ADS URLhttps://ui.adsabs.harvard.edu/abs/2012PhLB..715..178X
ADS CITATIONShttps://ui.adsabs.harvard.edu/abs/2012PhLB..715..178X/citations
inspireid1084381
inspireURLhttps://inspirehep.net/literature/1084381
Citation statistics
Cited Times:10 [INSPIRE]
Cited Times:12 [ADS]
Document Type期刊论文
Identifierhttp://ir.ihep.ac.cn/handle/311005/223883
Collection理论物理室
Recommended Citation
GB/T 7714
Xing ZZ,周也铃;Xing, ZZ,Zhou, YL. Enhanced electromagnetic transition dipole moments and radiative decays of massive Majorana neutrinos thanks to the seesaw-induced non-unitary effects[J]. PHYSICS LETTERS B,2012,715(1-3):178-182.
APA 邢志忠,周也铃;Xing, ZZ,&Zhou, YL.(2012).Enhanced electromagnetic transition dipole moments and radiative decays of massive Majorana neutrinos thanks to the seesaw-induced non-unitary effects.PHYSICS LETTERS B,715(1-3),178-182.
MLA 邢志忠,et al."Enhanced electromagnetic transition dipole moments and radiative decays of massive Majorana neutrinos thanks to the seesaw-induced non-unitary effects".PHYSICS LETTERS B 715.1-3(2012):178-182.
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