Weak scale radiative lepton mass

Journal Article · Thu Sep 01 00:00:00 EDT 1994 · Physical Review, D (Particles Fields); (United States)

DOI:https://doi.org/10.1103/PhysRevD.50.R2962· OSTI ID:7241915

Wong, G; Hou, W ^[1]

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1. Department of Physics, National Taiwan University, Taipei, Taiwan 10764 (Taiwan, Province of China)

We construct a [ital Z][sub 8] model for leptons where all Yukawa couplings are of order unity, but known lepton masses are generated radiatively, [ital order] [ital by] [ital order]. The seed is provided by fourth generation leptons [ital E] and [ital N], and two additional Higgs doublets are introduced to give nearest-neighbor Yukawa couplings. Loop masses are generated when [ital Z][sub 8] is [ital softly] broken down to [ital Z][sub 2], while [ital m][sub [ital e]] and [ital m][sub [mu]] generation require Higgs bosons to be weak scale. The [ital Z][sub 2] symmetry forbids [mu][r arrow][ital e][gamma]. The most stringent bound comes from [tau][r arrow][mu][mu][sup [plus minus]][ital e][sup [minus plus]]. The model has implications for [tau][r arrow][ital e][gamma], [mu][ital [bar e]][r arrow][bar [mu]][ital e] conversion, [mu][r arrow][ital e][nu][sub [ital e]][bar [nu]][sub [mu]], and FCNC decays of [ital E] and [ital N] (such as [ital E][r arrow][tau][ital e][sup [plus minus]][mu][sup [minus plus]]).

• OSTI ID: 7241915
• Journal Information: Physical Review, D (Particles Fields); (United States), Vol. 50:5; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
Pa
LEPTONS
PARTICLE MODELS
COUPLING
HIGGS BOSONS
MASS
NEUTRAL-CURRENT INTERACTIONS
SYMMETRY
YUKAWA POTENTIAL
ELEMENTARY PARTICLES
FERMIONS
INTERACTIONS
MATHEMATICAL MODELS
NUCLEAR POTENTIAL
PARTICLE INTERACTIONS
POSTULATED PARTICLES
POTENTIALS
662210* - Specific Theories & Interaction Models
Particle Systematics- Unified Theories & Models- (1992-)
662370 - Decays of Leptons- (1992-)
662430 - Properties of Leptons- (1992-)