Testing logarithmic violations to scaling in strongly coupled QED

被引：8

作者：

Azcoiti, V

DiCarlo, G

Galante, A

Grillo, AF

Laliena, V

Piedrafita, CE

机构：

[1] CERN,DIV THEORY,CH-1211 GENEVA 23,SWITZERLAND

[2] IST NAZL FIS NUCL,LAB NAZL FRASCATI,I-00044 FRASCATI,ITALY

[3] UNIV LAQUILA,DIPARTIMENTO FIS,I-67100 LAQUILA,ITALY

[4] IST NAZL FIS NUCL,LAB NAZL GRAN SASSO,I-67010 ASSERGI,LAQUILA,ITALY

[5] UNIV BERN,INST PHYS,CH-3012 BERN,SWITZERLAND

来源：

PHYSICS LETTERS B | 1996年 / 379卷 / 1-4期

关键词：

D O I：

10.1016/0370-2693(96)00400-5

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Using very precise measurements of the critical couplings for the chiral transition of non-compact QED(4) in 10(4), 12(4) and 14(4) lattices we analyse the behaviour of the order parameter at the critical point using the equation of state of a logarithmically improved scalar mean field theory, that of the Nambu-Jona Lasinio theory and a pure power law. The first case is definitively excluded by the numerical data. Contrary to that, very high quality fits can be found for the other two cases, A more complex analysis including the susceptibility is however able to clearly distinguish between the last two possibilities. Triviality a la Nambu-Jona Lasinio is also ruled out.

引用

页码：179 / 185

页数：7

共 16 条

[1] MICROCANONICAL FERMIONIC AVERAGE METHOD FOR MONTE-CARLO SIMULATIONS OF LATTICE GAUGE-THEORIES WITH DYNAMICAL FERMIONS [J].