COMPUTATION OF THE WINDING NUMBER DIFFUSION RATE DUE TO THE COSMOLOGICAL SPHALERON

Authors
VOLKOV MS
Citation
Ms. Volkov, COMPUTATION OF THE WINDING NUMBER DIFFUSION RATE DUE TO THE COSMOLOGICAL SPHALERON, Physical review. D. Particles and fields, 54(8), 1996, pp. 5014-5030
Citations number
61
Categorie Soggetti
Physics, Particles & Fields
Journal title
Physical review. D. Particles and fields → ACNP
ISSN journal
05562821
Volume
54
Issue
8
Year of publication
1996
Pages
5014 - 5030
Database
ISI
SICI code
0556-2821(1996)54:8<5014:COTWND>2.0.ZU;2-Y
Abstract
A detailed quantitative analysis of the transition process mediated by a sphaleron-type non-Abelian gauge field configuration in a static Ei nstein universe is carried out. By examining spectra of the fluctuatio n operators and applying the zeta-junction regularization scheme, a cl osed analytical expression for the transition rate at the one-loop lev el is derived. This is a unique example of an exact solution for a sph aleron model in 3 + 1 spacetime dimensions.