Particle distributions in electroweak tachyonic preheating
High Energy Physics - Lattice
2009-11-10 v1 High Energy Physics - Phenomenology
Abstract
We consider the out-of-equilibrium (quasi-) particle number distributions of the Higgs and W-fields during electroweak tachyonic preheating. We model this process by a fast quench, and perform classical real-time lattice simulations in the SU(2)-Higgs model in three dimensions. We discuss how to define particle numbers and effective energies using two-point functions in Coulomb and unitary gauge, and consider some of the associated problems. After an initial exponential growth in effective particle numbers, the system stabilises, allowing us to extract effective masses, temperatures and chemical potentials for the particles.
Cite
@article{arxiv.hep-lat/0309046,
title = {Particle distributions in electroweak tachyonic preheating},
author = {Jon-Ivar Skullerud and Jan Smit and Anders Tranberg},
journal= {arXiv preprint arXiv:hep-lat/0309046},
year = {2009}
}
Comments
3 pages, Lattice2003(higgs)