Denes Sexty (Budapest):
Baryon generation in nonequilibrium electroweak phase transition
Abstract:
Real time rearrangement of particle spectra is studied numerically in a
U(1) Gauge+Higgs system, in the unitary gauge and in three spatial dimensions. The cold system
starts from the symmetric phase. Evolution of the partial energy densities and pressures reveals
welldefined equations of state for the longitudinal and transversal gauge fields very early.
Longitudinal modes are excited more efficiently and thermalize the slowest. Hausdorffdimension of
the Higgsdefect manifold, eventually seeding vortex excitations is thoroughly discussed. Scaling
dependence of the vortex density on the characteristic time of the symmetry breaking transition is
established.
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