COVARIANT PERTURBATION-THEORY .3. SPECTRAL REPRESENTATIONS OF THE 3RD-ORDER FORM-FACTORS

被引：79

作者：

BARVINSKY, AO ^{[1
]}

VILKOVISKY, GA ^{[1
]}

机构：

[1] PN LEBEDEV PHYS INST,MOSCOW 117924,USSR

来源：

NUCLEAR PHYSICS B | 1990年 / 333卷 / 02期

关键词：

D O I：

10.1016/0550-3213(90)90048-I

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：

Extension of covariant perturbation theory to third order in curvature requires the triple- spectral forms for one-loop vertex functions of massless fields to be established. For the simplest triangular graph with unit vertices the three spectral masses are known to form a triangle, and the spectral weight is 1 4πS where S is the area of this triangle. We generalize this result to an arbitrary derivative coupling. © 1990.

引用

页码：512 / 524

页数：13

共 12 条

[1] COVARIANT PERTURBATION-THEORY .2. 2ND-ORDER IN THE CURVATURE - GENERAL ALGORITHMS [J].