CP violation and the development of cosmological baryon asymmetry

Conference · Tue Jan 01 04:00:00 EST 1980

OSTI ID:6593341

Senjanovic, G

A discussion of the origin of the observed matter-antimatter asymmetry of the universe is presented in the context of the standard cosmological model. Except in the case of the minimal SU(5) theory, it is possible that grand unified theories predict the right order of magnitude for the ratio of baryon to photon number. The question of CP violation is addressed in detail and it is shown that, tied up with symmetry nonrestoration at high temperature, the soft CP violation does remain at T approx. = 10/sup 15/ GeV as to lead to the creation of baryon asymmetry in the very early universe.

• Research Organization: Brookhaven National Lab., Upton, NY (USA)
• DOE Contract Number: AC02-76CH00016
• OSTI ID: 6593341
• Report Number(s): BNL-29025; CONF-801244-3
• Country of Publication: United States
• Language: English

Related Subjects

640106* -- Astrophysics & Cosmology-- Cosmology
645301 -- High Energy Physics-- Particle Invariance Principles & Symmetries-- General-- (-1987)
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANTIMATTER
COSMOLOGICAL MODELS
CP INVARIANCE
INVARIANCE PRINCIPLES
MATHEMATICAL MODELS
MATTER
PARTICLE MODELS
SYMMETRY BREAKING
TEMPERATURE DEPENDENCE
UNIFIED GAUGE MODELS