THE U(1)-HIGGS MODEL - CRITICAL-BEHAVIOR IN THE CONFINING HIGGS REGION

被引：22
|
作者：
ALONSO, JL
AZCOITI, V
CAMPOS, I
CIRIA, JC
CRUZ, A
INIGUEZ, D
LESMES, F
PIEDRAFITA, C
RIVERO, A
TARANCON, A
BADONI, D
FERNANDEZ, LA
SUDUPE, AM
RUIZLORENZO, JJ
GONZALEZARROYO, A
MARTINEZ, P
PECH, J
TELLEZ, P
机构：
[1] UNIV ROMA TOR VERGATA, DIPARTIMENTO FIS, ROME, ITALY
[2] INFN, ROME, ITALY
[3] UNIV COMPLUTENSE MADRID, DEPT FIS TEOR, E-28040 MADRID, SPAIN
[4] UNIV AUTONOMA MADRID, DEPT FIS TEOR, E-28034 MADRID, SPAIN
[5] FYZ USTAV AKAD PRAGUE, PRAGUE, CZECHOSLOVAKIA
[6] UNIV ROMA 1, DIPARTIMENTO FIS, ROME, ITALY
[7] INFN, ROME, ITALY
[8] UNIV ZARAGOZA, FAC CIENCIAS, SERV INTRUMENTAC ELECTR, ZARAGOZA, SPAIN
来源：
NUCLEAR PHYSICS B | 1993年 / 405卷 / 2-3期
关键词：
D O I：
10.1016/0550-3213(93)90560-C
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
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 for 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 measured.
引用
收藏
页码：574 / 592
页数：19
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