Inhomogeneous Field Configurations and the Electroweak Phase Transition
arXiv:hep-ph/9309320 · doi:10.1103/PhysRevD.49.3869
Abstract
We investigate the effects of inhomogeneous scalar field configurations on the electroweak phase transition. For this purpose we calculate the leading perturbative correction to the wave function correction term $Z(\vph,T)$, i.e., the kinetic term in the effective action, for the electroweak Standard Model at finite temperature and the top quark self--mass. Our finding for the fermionic contribution to $Z(\vph,T)$ is infra--red finite and disagrees with other recent results. In general, neither the order of the phase transition nor the temperature at which it occurs change, once $Z(\vph,T)$ is included. But a non--vanishing, positive (negative) $Z(\vph,T)$ enhances (decreases) the critical droplet surface tension and the strength of the phase transition. We find that in the range of parameter space, which allows for a first--order phase transition, the wave function correction term is negative --- indicating a weaker phase transition --- and especially for small field values so large that perturbation theory becomes unreliable.
23 pages of LaTeX + 3 PostScript figures included in uuencoded form, FERMI-PUB-93/253-T
References in corpus (13)
- The Effective Potential and First-Order Phase Transitions: Beyond Leading Order
- Towards the Theory of Cosmological Phase Transitions
- Resummation in a Hot Scalar Field Theory
- Baryon Asymmetry of the Universe in the Minimal Standard Model
- A Lattice Monte Carlo Study of the Hot Electroweak Phase Transition
- On the electroweak phase transition in the Minimal Supersymmetric Standard Model
- Phase Transition Temperatures at Next-to-Leading Order
- On Non-Perturbative Effects at the High-Temperature Electroweak Phase Transition
- Resummation Methods at Finite Temperature: The Tadpole Way
- Critical Behavior in the Electroweak Phase Transition
- Thermal Fluctuations and Validity of the 1-Loop Effective Potential
- Introduction to Thermal Field Theory
- How Effective is the Effective Potential?