Abstract
Abstract
We estimate the equilibration rate of
a nearly homogeneous Higgs field,
displaced from its ground state during the onset
of an electroweak phase transition.
The computation is carried out with Hard Thermal Loop
resummed perturbation theory, and a significant
part of the result originates from Bose-enhanced
t-channel 2 ↔ 2 scatterings.
The expression is shown to be IR finite and gauge independent.
Possible applications to Langevin simulations of bubble nucleation
are mentioned, and we also contrast with
the friction affecting bubble growth.
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