Fermionic fluctuation corrections to bubble nucleation

Journal Article · Mon Apr 01 04:00:00 EST 1996 · Physical Review, D

DOI:https://doi.org/10.1103/PhysRevD.53.4499· OSTI ID:282186

Baacke, J; Suerig, A ^[1]

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1. Institut fuer Physik, Universitaet Dortmund, D-44221 Dortmund (Germany)

We determine the fermionic corrections to the nucleation rate of bubbles at the electroweak phase transition. The fermion determinant is evaluated at finite temperature, both exactly and by using the gradient expansion. The gradient expansion is found to be a reliable approximation and is used to extrapolate to the large values of {nu}{sub {ital n}}=(2{ital n}+1){pi}{ital T} needed in the Matsubara sum. The contribution to the effective action is found to be negative. Only the top quark contribution is evaluated. It is smaller than the loop corrections from Higgs and {ital W} bosons and of opposite sign. {copyright} {ital 1996 The American Physical Society.}

• OSTI ID: 282186
• Journal Information: Physical Review, D, Journal Name: Physical Review, D Journal Issue: 8 Vol. 53; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
BUBBLES
CORRECTIONS
EXPANSION
FERMIONS
FLUCTUATIONS
HIGGS BOSONS
NUCLEATION
PHASE TRANSFORMATIONS
T QUARKS
W MINUS BOSONS
W PLUS BOSONS