Bubble wall velocity beyond leading-log approximation in electroweak phase transition

Abstract

The bubble wall velocity is essential for the phase transition dynamics in the early universe and its cosmological implications, such as the energy budget of phase transition gravitational wave and electroweak baryogenesis. One key factor to determine the wall velocity is the collision term that quantifies the interactions between the massive particles in the plasma and the bubble wall. We improve the calculations of the collision term beyond the leading-log approximation, and further obtain more precise bubble wall velocity for a representative effective model.

18 pages, 5 figures, 1 table

References in corpus (4)

• Probing the baryogenesis and dark matter relaxed in phase transition by gravitational waves and colliders
• Hydrodynamics of phase transition fronts and the speed of sound in the plasma
• An efficient approach to electroweak bubble velocities
• Analytic approach to the motion of cosmological phase transition fronts

Cited by in corpus (5)

• The Gravitational-Wave Physics II: Progress
• Bubble wall dynamics at the electroweak phase transition
• A sonic boom in bubble wall friction
• Logarithmically divergent friction on ultrarelativistic bubble walls
• Sound velocity effects on the phase transition gravitational wave spectrum in the sound shell model