Aspects of a supersymmetric left-right gauge model with tau-gaugino mixing

Journal Article · Thu Mar 01 04:00:00 EST 1990 · Physical Review, D (Particles Fields); (USA)

DOI:https://doi.org/10.1103/PhysRevD.41.1640· OSTI ID:6915965

Umemura, I; Yamamoto, K ^[1]

---

1. Department of Nuclear Engineering, Kyoto University, Kyoto 606, Japan (JP)

A supersymmetric left-right gauge model is investigated, where the mixing between {tau} and the SU(2){sub {ital R}} gaugino {chi}{sub {ital R}} occurs due to an unconventional assignment for the matter fields. At present, a small nonzero value may be allowed for the left-handed {tau}-{chi}{sub {ital R}} mixing angle, as suggested from the somewhat long lifetime of {tau}, while the right-handed mixing angle is rather elusive in low-energy phenomena. Some constraints on the model parameters such as the {tau}-{chi}{sub {ital R}} mixing angles and the top-quark mass are obtained from the analysis of the {tau}-{chi}{sub {ital R}} mass matrix together with the perturbation condition on the Yukawa couplings at large scales. The rates of gauge-boson decays into lepton pairs are estimated for the allowed region of the model parameters. The results suggest that the {tau}-{chi}{sub {ital R}} mixing effects will be checked more clearly as the violation of lepton universality in the gauge-boson decays.

• OSTI ID: 6915965
• Journal Information: Physical Review, D (Particles Fields); (USA), Journal Name: Physical Review, D (Particles Fields); (USA) Vol. 41:5; ISSN PRVDA; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

645203 -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- Weak Interactions & Properties
645300* -- High Energy Physics-- Particle Invariance Principles & Symmetries
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BOSONS
COUPLING
DECAY
ELEMENTARY PARTICLES
FERMIONS
GAUGE INVARIANCE
HEAVY LEPTONS
INVARIANCE PRINCIPLES
LEPTONS
LIE GROUPS
LIFETIME
MASS
NUCLEAR POTENTIAL
POSTULATED PARTICLES
POTENTIALS
QUANTUM NUMBERS
QUARKS
SU GROUPS
SU-2 GROUPS
SU-3 GROUPS
SUPERSYMMETRY
SYMMETRY
SYMMETRY GROUPS
TAU PARTICLES
U GROUPS
U-1 GROUPS
YUKAWA POTENTIAL