Mixing angles and CP violation in SU(2)/sub L/ x U(1) gauge model

Technical Report · Sun Dec 31 23:00:00 EST 1978

DOI:https://doi.org/10.2172/5653090· OSTI ID:5653090

Nandi, S; Tanaka, K

Expressions for the mixing parameters are obtained in terms of mass ratios in the standard Weinberg-Salam model with permutation symmetry S/sub 3/ for six quarks. The CP-violating phase, delta, is taken into account, and there are no arbitrary parameters except for the quark masses. In the lowest order, the angles defined by Kobayashi-Maskawa are sin theta/sub 1/ approx. = (m/sub d//m sub d/ + m/sub s/)/sup 1/2, sin theta/sub 2/ approx. = -((m/sub s//m/sub b/)/sup 2/ - (m/sub c//m/sub t/)/sup 2/)/sup 1/2/, and sin theta/sub 3/ = (m/sub s//m/sub b/)/sup 2//cos theta/sub 1/. The model can be consistent with the observed magnitude of CP violation. The b quarks decay predominantly into c quarks with lifetime of tau/sub b/ approx. = 10/sup -11/ s.

• Research Organization: Ohio State Univ., Columbus (USA). Dept. of Physics
• DOE Contract Number: EY-76-C-02-1545
• OSTI ID: 5653090
• Report Number(s): COO-1545-265(Rev.)
• 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
CP INVARIANCE
DATA
DATA FORMS
EIGENVALUES
ELEMENTARY PARTICLES
INFORMATION
INVARIANCE PRINCIPLES
ISOLATED VALUES
LIFETIME
MASS
MATHEMATICAL MODELS
MIXING RATIO
NUMERICAL DATA
PARTICLE MODELS
POSTULATED PARTICLES
QUARKS
THEORETICAL DATA
UNIFIED GAUGE MODELS
WEINBERG-SALAM GAUGE MODEL