A Study of Symmetry Restoration at Finite Temperature in the O(4) Model Using Anisotropic Lattices

Details A Study of Symmetry Restoration at Finite Temperature in the O(4) Model Using Anisotropic Lattices A Study of Symmetry Restoration at Finite Temperature in the O(4) Model Using Anisotropic Lattices

1992-04-08

arxiv.org/abs/hep-lat/9201002v1

Nucl.Phys.Proc.Suppl. 26 (1992) 539-541

Physics

High Energy Physics

High Energy Physics - Lattice

Scientific paper

10.1016/0920-5632(92)90327-O

Results of investigations of the O(4) spin model at finite temperature using anisotropic lattices are presented. In both the large $N$ approximation and the numerical simulations using the Wolff cluster algorithm we find that the ratio of the symmetry restoration temperature $T_{\rm SR}$ to the Higgs mass $m_{\rm H}$ is independent of the anisotropy. We obtain a lower bound of $0.59 \pm 0.04$ for the ratio, $T_{\rm SR}/m_{\rm H}$, at $m_{\rm H}a \simeq 0.5$, which is lowered further by about 10% at $m_{\rm H}a \simeq 1.$

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