出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：The Higgs SU(2) model with l = ¥ (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.
