PERTURBATIVE RENORMALIZATION OF MASSLESS PHI-4(4) WITH FLOW EQUATIONS

被引：22

作者：

KELLER, G

KOPPER, C

机构：

[1] MAX PLANCK INST PHYS & ASTROPHYS,D-80805 MUNICH,GERMANY

[2] UNIV GOTTINGEN,INST THEORET PHYS,D-37073 GOTTINGEN,GERMANY

来源：

COMMUNICATIONS IN MATHEMATICAL PHYSICS | 1994年 / 161卷 / 03期

关键词：

D O I：

10.1007/BF02101931

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Perturbative renormalizability proofs in the Wilson-Polchinski renormalization group framework, based on flow equations, were so far restricted to massive theories. Here we extend them to Euclidean massless phi4(4). As a by-product of the proof we obtain bounds on the singularity of the Green functions at exceptional momenta in terms of the exceptionality of the latter. These bounds seem to be new and are quite sharp.

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页码：515 / 532

页数：18

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