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18 January 2025

» arxiv » hep-lat/9210014

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The U(1)-Higgs Model: Critical Behaviour in the Confinig-Higgs region
Alonso ; Azcoiti ; Campos ; Ciria ; Cruz ; Iniguez ; lesmes ; Piedrafita ; Rivero ; Tarancon ; Badoni ; Fernandez ; Munoz Sudupe ; Ruiz Lorenzo ; Gonzalez Arroyo ; Martinez ; Pech ; Tellez ;
Date:	9 Oct 1992
Journal:	Nucl.Phys. B405 (1993) 574-592
Subject:	hep-lat
Abstract:	We study numerically the critical properties of the U(1)-Higgs lattice model, with fixed Higgs modulus, in the region of small gauge coupling where the Higgs and Confining phases merge. We find evidence of a first order transition line that ends in a second order point. By means of a rotation in parameter space we introduce thermodynamic magnitudes and critical exponents in close resemblance with simple models that show analogous critical behaviour. The measured data allow us to fit the critical exponents finding values in agreement with the mean field prediction. The location of the critical point and the slope of the first order line are accurately given.
Source:	arXiv, hep-lat/9210014
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