U(1) flavor symmetry and proton decay in supersymmetric standard model | Zendy

M. Kakizaki | Zendy; Masahiro Yamaguchi | Zendy

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U(1) flavor symmetry and proton decay in supersymmetric standard model

Author(s) -

M. Kakizaki,

Masahiro Yamaguchi

Publication year - 2002

Publication title -

journal of high energy physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.998

H-Index - 261

eISSN - 1126-6708

pISSN - 1029-8479

DOI - 10.1088/1126-6708/2002/06/032

Subject(s) - proton decay , physics , particle physics , muon , neutrino , higgs boson , supersymmetry , branching fraction , lepton , symmetry (geometry) , proton , flavor , so(10) , dimension (graph theory) , nuclear physics , grand unified theory , electron , chemistry , geometry , mathematics , combinatorics , biochemistry

Issues of proton decay are examined in supersymmetric standard model withU(1) flavor symmetry. Dimension five proton-decay operators which arisegenerically are controlled by the flavor symmetry. We show that unlike theminimal supersymmetric SU(5) case the proton decay modes containing chargedlepton can have large branching ratios if the dimension five operators ofleft-handed type dominate. Measuring the branching ratio of the electron modeto the muon mode may reveal the mechanism of the neutrino mass generation. Thecase with vanishing charges for Higgs doublets marginally survives the presentexperimental bound on proton life time.Comment: Reference added and typos correcte

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