Parametrization of the Kobayashi-Maskawa matrix and CP violation

Journal Article · Sun Mar 01 04:00:00 EST 1987 · Phys. Rev. D; (United States)

DOI:https://doi.org/10.1103/PhysRevD.35.1680· OSTI ID:6750464

Mingde, Xin; Lianrui, Zhang

The Kobayashi-Maskawa matrix with four-generation quarks is found by introducing two small parameters lambda/sub k/ (lambda/sub 1/equivalentU/sub 12/,lambda/sub 2/equivalentU/sub 34/) and taking into account experimental and unitarity constraints. Based on this, we analyze the possible difficulties the first three generations may face in accounting for CP violation in the K/sup 0/-K-bar /sup 0/ system. The additional contribution of the fourth generation and some constraints on lambda/sub 2/, m/sub t//sub '/, and the four-generation CP-violating phases phi/sub i//sub j/ are discussed. From the measured value of the CP-violation parameter epsilon, the relation between phi/sub 14/ and phi/sub 24/ is depicted by the oval curve(s). Furthermore, the relations of the curve(s) to lambda/sub 2/, m/sub t//sub '/, and other parameters are investigated.

• Research Organization: Department of Physics, Lanzhou University, Lanzhou, People's Republic of China
• OSTI ID: 6750464
• Journal Information: Phys. Rev. D; (United States), Journal Name: Phys. Rev. D; (United States) Vol. 35:5; ISSN PRVDA
• Country of Publication: United States
• Language: English

Related Subjects

645202* -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- Electromagnetic Interactions & Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANTIKAONS
ANTIKAONS NEUTRAL
ANTIMATTER
ANTIPARTICLES
BOSONS
CP INVARIANCE
ELEMENTARY PARTICLES
FIELD THEORIES
HADRONS
INTERACTIONS
INVARIANCE PRINCIPLES
KAONS
KAONS NEUTRAL
KOBAYASHI-MASKAWA MATRIX
MATRICES
MATRIX ELEMENTS
MESONS
PARTICLE INTERACTIONS
POSTULATED PARTICLES
PSEUDOSCALAR MESONS
QUARKS
STRANGE MESONS
STRANGE PARTICLES
UNIFIED-FIELD THEORIES
UNITARITY