Flavor-changing effects via Higgs particles in E/sub 6/ superstring-inspired models

Journal Article · Fri Jul 01 00:00:00 EDT 1988 · Phys. Rev. D; (United States)

DOI:https://doi.org/10.1103/PhysRevD.38.311· OSTI ID:6966418

Volkas, R R; Davies, A J; Joshi, G C

We investigate flavor-changing processes that may occur due to the multigenerational nature of Higgs multiplets in an E/sub 6/ superstring-inspired model. We extend the conventional renormalization-group analysis of electroweak symmetry breaking to include exotic couplings between the second-generation doublets (with the quantum numbers of Higgs particles) and the top quark. Requiring phenomenologically viable electroweak symmetry breaking places an upper bound on the size of these couplings. We then investigate two phenomenological implications: (i) additional contributions to b..-->..s..gamma.. and (ii) additional effects in neutral-meson mixing that can lead to acceptable phenomenology even with a relatively light top quark.

• Research Organization: School of Physics, University of Melbourne, Parkville 3052, Australia
• OSTI ID: 6966418
• Journal Information: Phys. Rev. D; (United States), Vol. 38:1
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
STRING MODELS
HIGGS BOSONS
ELECTROMAGNETIC INTERACTIONS
FLAVOR MODEL
SYMMETRY BREAKING
WEAK INTERACTIONS
BASIC INTERACTIONS
COMPOSITE MODELS
ELEMENTARY PARTICLES
EXTENDED PARTICLE MODEL
INTERACTIONS
MATHEMATICAL MODELS
PARTICLE MODELS
POSTULATED PARTICLES
QUARK MODEL
645400* - High Energy Physics- Field Theory
645202 - High Energy Physics- Particle Interactions & Properties-Theoretical- Electromagnetic Interactions & Properties
645203 - High Energy Physics- Particle Interactions & Properties-Theoretical- Weak Interactions & Properties