GUTs with several generations and without domain walls

Conference · Sat Jan 01 04:00:00 EST 1983

OSTI ID:5467912

Kang, K

Grand unified theories (GUTs) have resulted in several exciting cosmological consequences such as the existence of the baryon number violating interactions, the existence of magnetic monopoles and the existence of a phase transition with the critical temperature corresponding to the energy of unification scale. When one applies GUTs to the early universe within the context of the standard big bang scenario, classic puzzles like the matter-antimatter asymmetry, the large scale homogeneity (beyond the particle horizon) and isotropy of the universe, and the flatness of the present universe may even be answered. In other words cosmology provides possible testing ground for GUTs that are not available from laboratory experiments. Recent developments concerning the invisible axion promote this view even further. One cosmological implication of the invisible axions in GUTs is discussed: the requirement of no domain-wall structures in the early universe and the generation problem of flavors. (WHK)

• Research Organization: Brown Univ., Providence, RI (USA). Dept. of Physics
• DOE Contract Number: AC02-76ER03130
• OSTI ID: 5467912
• Report Number(s): BROWN/HET-516; CONF-8308139-1; ON: DE84001291
• Country of Publication: United States
• Language: English

Related Subjects

640106 -- Astrophysics & Cosmology-- Cosmology
645400* -- High Energy Physics-- Field Theory
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
AXIONS
BOSONS
COSMOLOGY
DOMAIN STRUCTURE
ELEMENTARY PARTICLES
FIELD THEORIES
GOLDSTONE BOSONS
POSTULATED PARTICLES
SYMMETRY BREAKING
UNIFIED-FIELD THEORIES