W and Higgs particle distributions during electroweak tachyonic preheating
Abstract
We study out-of-equilibrium quasi-particle distributions of the Higgs and W fields during the zero-temperature tachyonic electroweak transition that has been assumed in recent scenarios of baryogenesis. Approximating the process by a fast quench, we perform classical real-time lattice simulations in the SU(2)-Higgs model. The emerging quasi-particle numbers and energies are then used to determine the effective temperatures, chemical potentials and masses of the particles shortly after the transition.
- Publication:
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Journal of High Energy Physics
- Pub Date:
- August 2003
- DOI:
- 10.1088/1126-6708/2003/08/045
- arXiv:
- arXiv:hep-ph/0307094
- Bibcode:
- 2003JHEP...08..045S
- Keywords:
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- Lattice Quantum Field Theory Cosmological Phase Transitions Baryogenesis Thermal Field Theory;
- High Energy Physics - Phenomenology;
- High Energy Physics - Lattice
- E-Print:
- 28 pages including 17 figures