The Higgs SU(2) model with lambda = infinity (fixed Higgs length) is usually believed to have two different phases at high gauge coupling b , 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.
Titolo: | On the phase diagram of the Higgs SU(2) model | |
Autori interni: | ||
Anno del prodotto: | 2008 | |
Rivista: | ||
Abstract: | The Higgs SU(2) model with lambda = infinity (fixed Higgs length) is usually believed to have two different phases at high gauge coupling b , 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. | |
Handle: | http://hdl.handle.net/11568/119817 | |
Appare nelle tipologie: | 4.1 Contributo in Atti di convegno |
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