Higgs sector of the left-right model with explicit CP violation

Journal Article · Wed Jun 01 04:00:00 EDT 2005 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PhysRevD.71.115015· OSTI ID:20709493

Kiers, Ken; Assis, Michael; Petrov, Alexey A ^[1]

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1. Physics Department, Taylor University, 236 West Reade Ave., Upland, Indiana 46989 (United States)

We explore the Higgs sector of the Minimal Left-Right (LR) Model based on the gauge group SU(2){sub L}xSU(2){sub R}xU(1){sub B-L} with explicit CP violation in the Higgs potential. Since flavour-changing neutral current experiments and the small scale of neutrino masses both place stringent constraints on the Higgs potential, we seek to determine whether minima of the Higgs potential exist that are consistent with current experimental bounds. We focus on the case in which the right-handed symmetry-breaking scale is only moderately large, of order 15-50 TeV. Unlike the case in which the Higgs potential is CP-invariant, the CP noninvariant case does yield viable scenarios, although these require a small amount of fine-tuning. We consider a LR model supplemented by an additional U(1) horizontal symmetry, which results in a Higgs sector consistent with current experimental constraints and a realistic spectrum of neutrino masses.

• OSTI ID: 20709493
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 11 Vol. 71; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CONSERVATION LAWS
CP INVARIANCE
FLAVOR MODEL
HIGGS BOSONS
HIGGS MODEL
NEUTRAL CURRENTS
NEUTRINOS
POTENTIALS
SU-2 GROUPS
SYMMETRY BREAKING
TEV RANGE
UNIFIED GAUGE MODELS
UNITARY SYMMETRY