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Electroweak Bubble Wall Friction: Analytic Results
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We present an entirely analytic, leading log order determination of the friction an electroweak bubble wall feels during a first order electroweak phase transition. The friction is dominated by W bosons, and gives a wall velocity parametrically ~ alpha_w, and numerically small, ~ .01 -- 0.1 depending on the Higgs mass.
Forward citations
Cited by 3 Pith papers
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Scalar damping in cosmological phase transitions
The scalar damping coefficient in the hydrodynamic friction term is extracted from kinetic theory for SM-like plasmas, and the runaway-wall pressure is found to bound the local friction from above.
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Thermal Masses and Bubble-Wall Friction in Cosmological Phase Transitions
Including thermal masses in both the Boltzmann source and collision terms removes the infrared gauge-boson enhancement, making W-boson friction subleading in the singlet-extended Standard Model.
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Electroweak Phase Transition and Bubble Wall Velocity in Local Thermal Equilibrium
Bubble wall velocities in local thermal equilibrium are computed for three BSM models and found to be nearly universal when expressed via the critical temperature and supercooling, with only deflagration solutions.
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