CP violation induced by heavy Majorana neutrinos in the decays of Higgs scalars into top-quark, W- and Z-boson pairs

We analyze the possibility of CP violation induced by heavy Majorana neutrinos in the decays of the Higgs particle into top-quark, W- and Z-boson pairs. In the framework of various “see-saw” models with interfamily mixings, we find that Majorana neutrinos may give rise to sizable CP-odd observables...

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Bibliographic Details
Published inPhysics letters. B Vol. 317; no. 4; pp. 609 - 616
Main Authors Ilakovac, A., Kniehl, B.A., Pilaftsis, A.
Format Journal Article
LanguageEnglish
Published Amsterdam Elsevier B.V 18.11.1993
Elsevier Science
Subjects
Charge conjugation, parity, time reversal, and other discrete symmetries
Exact sciences and technology
General theory of fields and particles
Physics
Symmetry and conservation laws
The physics of elementary particles and fields
Boson decay
Higgs boson
Majorana neutrino
CP violation
Elementary particle
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Summary:We analyze the possibility of CP violation induced by heavy Majorana neutrinos in the decays of the Higgs particle into top-quark, W- and Z-boson pairs. In the framework of various “see-saw” models with interfamily mixings, we find that Majorana neutrinos may give rise to sizable CP-odd observables at the one-loop electroweak order. Numerical estimates of these CP-violating effects that may be detected in high-energy colliders are presented.
ISSN:0370-2693
1873-2445
DOI:10.1016/0370-2693(93)91380-6