Fermion masses, rare processes, and CP violation in a class of extended-hypercolor models

Journal Article · Mon Feb 28 23:00:00 EST 1983 · Phys. Rev. D; (United States)

DOI:https://doi.org/10.1103/PhysRevD.27.1171· OSTI ID:6047381

Buras, A J; Dawson, S; Schellekens, A N

A class of m-generation models based on SU(N+m)xSU(N+m) extended-hypercolor groups and SU(N) hypercolor groups is discussed. Under certain conditions the models admit Hermitian mass matrices in the up- and down-quark sectors and give acceptable quark masses and acceptable weak mixing angles. The D/sup 0/D /sup 0/ mixing in these models is well below experimental limits, due to a new suppression mechanism which is discussed in detail. The models accommodate weak CP violation and have a strong CP angle which is naturally small. They fail, however, to account for the smallness of the K-bar /sup 0/K/sup 0/ mixing.

• Research Organization: Fermi National Accelerator Laboratory, P.O. Box 500, Batavia, Illinois 60510
• OSTI ID: 6047381
• Journal Information: Phys. Rev. D; (United States), Journal Name: Phys. Rev. D; (United States) Vol. 27:5; ISSN PRVDA
• Country of Publication: United States
• Language: English

Related Subjects

645302* -- High Energy Physics-- Particle Invariance Principles & Symmetries-- Applications to Electromagnetic & Weak Interactions-- (-1987)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BOSONS
COLOR MODEL
COMPOSITE MODELS
CP INVARIANCE
ELEMENTARY PARTICLES
FERMIONS
GAUGE INVARIANCE
HIGGS BOSONS
INTERMEDIATE BOSONS
INVARIANCE PRINCIPLES
LIE GROUPS
MASS
MATHEMATICAL MODELS
PARTICLE MODELS
POSTULATED PARTICLES
QUARK MODEL
QUARKS
SU GROUPS
SU-2 GROUPS
SYMMETRY GROUPS
U GROUPS
U-1 GROUPS