Speaker
Dr
潇 王
(中山大学天琴中心)
Description
The energy budget of electroweak first-order phase transition is essential for the gravitational
wave spectra. Most of the previous studies are based on the bag model with same sound velocity in
the symmetric and broken phase. We study the energy budget and the corresponding gravitational
wave spectra beyond the bag model, where the sound velocities could be different in the symmetric
and broken phase. Taking the Higgs sextic effective model as a representative model, we calculate
the sound velocities in different phase, the gravitational wave spectra and the signal-to-noise ratio
for different combinations of phase transition parameters beyond the bag model. We compare
these new results with the ones obtained from the bag model. The proper sound velocities and
phase transition parameters at the appropriate temperature are important to obtain more precise
predictions.
Primary author
Dr
潇 王
(中山大学天琴中心)
