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Explicit one-loop corrections to the strong CP-violating phase in SU(2)/sub L/ x U(1)

Journal Article · · Phys. Rev., D; (United States)
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In a CP-invariant Lagrangian the spontaneous symmetry breaking that generates the quark mass matrix m will induce CP violations into the strong interactions with strength theta/sub QFD/=arg Detm, where QFD refers to quantum flavor dynamics. Even if Detm is real in tree approximation, it will generally not be in higher order. We show that in any SU(2)/sub L/ x U(1) model the only one-loop corrections to theta/sub QFD/ come from Higgs particles. These are explicitly calculated in a six-quark model with permutation symmetry. We find theta/sub QFD/ approx. = 10/sup -10/(m/sub s//m/sub b/)(m/sub t//m/sub b/)/sup 2/ in one case and theta/sub QFD/ approx. = 10/sup -8/(m/sub c//m/sub t/) in a second case. Cabibbo angles and CP violation in the kaon system are also examined.
Research Organization:
Department of Physics, University of Pennsylvania, Philadelphia, Pennsylvania 19104
DOE Contract Number:
EY-76-C-02-3071
OSTI ID:
5534474
Journal Information:
Phys. Rev., D; (United States), Journal Name: Phys. Rev., D; (United States) Vol. 21:5; ISSN PRVDA
Country of Publication:
United States
Language:
English

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Related Subjects

645303* -- High Energy Physics-- Particle Invariance Principles & Symmetries-- Applications to Strong Interactions-- (-1987)
645400 -- High Energy Physics-- Field Theory
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BASIC INTERACTIONS
BOSONS
CABIBBO ANGLE
COMPOSITE MODELS
COUPLING CONSTANTS
CP INVARIANCE
ELEMENTARY PARTICLES
FIELD THEORIES
FUNCTIONS
HADRONS
HIGGS BOSONS
INTERACTIONS
INTERMEDIATE BOSONS
INVARIANCE PRINCIPLES
KAONS
LAGRANGIAN FUNCTION
LIE GROUPS
MASS SPECTRA
MATHEMATICAL MODELS
MATRIX ELEMENTS
MESONS
PARTICLE MODELS
POSTULATED PARTICLES
PSEUDOSCALAR MESONS
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
QUARK MODEL
SPECTRA
STRANGE PARTICLES
STRONG INTERACTIONS
SU GROUPS
SU-2 GROUPS
SYMMETRY BREAKING
SYMMETRY GROUPS
U GROUPS
U-1 GROUPS
VACUUM STATES