Fermion back reaction and the sphaleron

Journal Article · Tue Feb 15 00:00:00 EST 1994 · Physical Review, D (Particles Fields); (United States)

DOI:https://doi.org/10.1103/PhysRevD.49.R1689· OSTI ID:5265960

Roberge, A ^[1]

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1. Departement de Physique et d'Astronomie, Universite Laurentienne, Sudbury, Ontario, P3E 2C6 (Canada)

Using a simple model, a new sphaleron solution which incorporates finite fermionic density effects is obtained. The main result is that the height of the potential barrier (sphaleron energy) decreases as the fermion density increases. This suggests that the rate of sphaleron-induced transitions increases when the fermionic density increases. However the rate increase is not expected to change significantly the predictions from the standard sphaleron-induced baryogenesis scenarios.

• OSTI ID: 5265960
• Journal Information: Physical Review, D (Particles Fields); (United States), Vol. 49:4; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
FIELD THEORIES
FERMIONS
SOLUTIONS
BARYON NUMBER
DENSITY
ENERGY DENSITY
DISPERSIONS
MIXTURES
PHYSICAL PROPERTIES
662110* - General Theory of Particles & Fields- Theory of Fields & Strings- (1992-)