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Muon anomalous magnetic moment and tau -> mu gamma in a realistic string-inspired model of neutrino masses

Muon anomalous magnetic moment and tau -> mu gamma in a realistic string-inspired model of neutrino masses
Muon anomalous magnetic moment and tau -> mu gamma in a realistic string-inspired model of neutrino masses
We discuss the lepton sector of a realistic string-inspired model based on the Pati–Salam SU(4)×SU(2)L×SU(2)R gauge group supplemented by a U(1) family symmetry. The model involves third family Yukawa unification, predicts large tan?50, and describes all fermion masses and mixing angles, including approximate bi-maximal mixing in the neutrino sector. Atmospheric neutrino mixing is achieved via a large 23 entry in the neutrino Yukawa matrix which can have important phenomenological effects. We find that the recent BNL result on the muon (g?2) can be easily accommodated in a large portion of the SUSY parameter space of this model. Over this region of parameter space the model predicts a CP-even Higgs mass near 115 GeV, and a rate for ???+? which is close to its current experimental limit.
0370-2693
109-116
Blažek, T.
3609745f-eaef-4e6a-9610-c1459dffff86
King, S.F.
f8c616b7-0336-4046-a943-700af83a1538
Blažek, T.
3609745f-eaef-4e6a-9610-c1459dffff86
King, S.F.
f8c616b7-0336-4046-a943-700af83a1538

Blažek, T. and King, S.F. (2001) Muon anomalous magnetic moment and tau -> mu gamma in a realistic string-inspired model of neutrino masses. Physics Letters B, 518 (1-2), 109-116. (doi:10.1016/S0370-2693(01)00860-7).

Record type: Article

Abstract

We discuss the lepton sector of a realistic string-inspired model based on the Pati–Salam SU(4)×SU(2)L×SU(2)R gauge group supplemented by a U(1) family symmetry. The model involves third family Yukawa unification, predicts large tan?50, and describes all fermion masses and mixing angles, including approximate bi-maximal mixing in the neutrino sector. Atmospheric neutrino mixing is achieved via a large 23 entry in the neutrino Yukawa matrix which can have important phenomenological effects. We find that the recent BNL result on the muon (g?2) can be easily accommodated in a large portion of the SUSY parameter space of this model. Over this region of parameter space the model predicts a CP-even Higgs mass near 115 GeV, and a rate for ???+? which is close to its current experimental limit.

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More information

Submitted date: 25 June 2001
Published date: October 2001
Organisations: Physics & Astronomy

Identifiers

Local EPrints ID: 38471
URI: https://eprints.soton.ac.uk/id/eprint/38471
ISSN: 0370-2693
PURE UUID: b9787276-6459-4d30-8018-b227f365bfc5

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Date deposited: 09 Jun 2006
Last modified: 15 Jul 2019 19:02

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