Electroweak baryogenesis induced by a scalar field

Citation
R. Brustein et Dh. Oaknin, Electroweak baryogenesis induced by a scalar field, PHYS REV L, 82(13), 1999, pp. 2628-2631
Citations number
16
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW LETTERS
ISSN journal
0031-9007 → ACNP
Volume
82
Issue
13
Year of publication
1999
Pages
2628 - 2631
Database
ISI
SICI code
0031-9007(19990329)82:13<2628:EBIBAS>2.0.ZU;2-0
Abstract
A cosmological pseudoscalar field coupled to hypercharge topological number density can exponentially amplify hyperelectric and hypermagnetic fields w hile coherently rolling or oscillating, leading to the formation of a time- dependent condensate of topological number density. The topological condens ate can be converted, under certain conditions, into baryons in sufficient quantity to explain the observed baryon asymmetry in the Universe. The ampl ified hypermagnetic field can perhaps sufficiently strengthen the electrowe ak phase transition, and by doings so save any preexisting baryon number as ymmetry from extinction. [S0031-9007(99)08807-9].