Lepton flavor-violating decays of the Higgs boson from sgoldstino mixing

A bstract We study lepton flavor violation in a class of supersymmetric models with light sgoldstino — scalar superpartner of Goldstone fermions responsible for spontaneous supersymmetry breaking. Sgoldstino couplings to the Standard Model (SM) fermions are determined by the MSSM soft terms and, in...

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Published inThe journal of high energy physics Vol. 2016; no. 8; pp. 1 - 29
Main Authors Demidov, S. V., Sobolev, I. V.
Format Journal Article
LanguageEnglish
Published Berlin/Heidelberg Springer Berlin Heidelberg 01.08.2016
Springer Nature B.V
Subjects
Admixtures
Classical and Quantum Gravitation
Constants
Couplings
Decay
Elementary Particles
Fermions
Higgs bosons
High energy physics
Leptons
Physics
Physics and Astronomy
Quantum Field Theories
Quantum Field Theory
Quantum Physics
Regular Article - Theoretical Physics
Relativity Theory
Scalars
String Theory
Supersymmetry
Supersymmetry Phenomenology
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Summary:A bstract We study lepton flavor violation in a class of supersymmetric models with light sgoldstino — scalar superpartner of Goldstone fermions responsible for spontaneous supersymmetry breaking. Sgoldstino couplings to the Standard Model (SM) fermions are determined by the MSSM soft terms and, in general, provide with flavor violation in this sector. Sgoldstino admixture to the lightest Higgs boson results in changes of its coupling constants and, in particular, leads to lepton flavor-violating decay h → τ μ of the Higgs resonance. We discuss viability and phenomenological consequences of this scenario.
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ISSN:1029-8479
1029-8479
DOI:10.1007/JHEP08(2016)030