On the phase diagram of the Higgs SU(2) model

Details On the phase diagram of the Higgs SU(2) model On the phase diagram of the Higgs SU(2) model

2009-01-28

arxiv.org/abs/0901.4429v1

PoS LATTICE2008:252,2008

Physics

High Energy Physics

High Energy Physics - Lattice

6 pages, 6 figures. Talk presented at The XXVI International Symposium on Lattice Field Theory, July 14 - 19, 2008 - Williamsb

Scientific paper

The Higgs SU(2) model with fixed Higgs length is usually believed to have two different phases at high gauge coupling (\beta), separated by a line of first order transitions but not distinuguished by any typical symmetry associated with a local order parameter, as first proved by Fradkin and Shenker. We show that in regions of the parameter space where it is usually supposed to be a first order phase transition only a smooth crossover is in fact present.

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