CANCELLATION OF INFRARED AND COLLINEAR SINGULARITIES IN RELATIVISTIC THERMAL FIELD-THEORIES .2.

被引：10
作者：
LEBELLAC, M
REYNAUD, P
机构：
[1] Institut Non Linéaire, Nice Unité Mixte de Recherche 129, CNRS., 06108 Nice Cedex 2, Parc Calrose
来源：
NUCLEAR PHYSICS B | 1992年 / 380卷 / 03期
关键词：
D O I：
10.1016/0550-3213(92)90252-7
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 the infrared and collinear divergences of a renormalizable scalar field theory at finite temperature. We give the final results of an investigation undertaken in a previous work by showing the complete cancellation of all divergences at two-loop order in a physical process. This result makes the validity of the Kinoshita-Lee-Nauenberg theorem at finite temperature extremely plausible.
引用
收藏
页码：423 / 430
页数：8
相关论文
共 18 条
[1]   FINITE TEMPERATURE QCD CORRECTIONS TO LEPTON-PAIR FORMATION IN A QUARK GLUON PLASMA [J].
ALTHERR, T ;
AURENCHE, P .
ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1989, 45 (01) :99-107
[2]   CANCELLATION OF INFRARED AND MASS SINGULARITIES IN THE THERMAL DILEPTON RATE [J].
ALTHERR, T ;
BECHERRAWY, T .
NUCLEAR PHYSICS B, 1990, 330 (01) :174-192
[3]   ON INFRARED AND MASS SINGULARITIES OF PERTURBATIVE QCD IN A QUARK GLUON PLASMA [J].
ALTHERR, T ;
AURENCHE, P ;
BECHERRAWY, T .
NUCLEAR PHYSICS B, 1989, 315 (02) :436-464
[4]   INFRARED SINGULARITIES CANCELLATION IN REACTION-RATES AT FINITE TEMPERATURE [J].
ALTHERR, T .
PHYSICS LETTERS B, 1991, 262 (2-3) :314-319
[5]   DILEPTON PRODUCTION AT FINITE TEMPERATURE - PERTURBATIVE TREATMENT AT ORDER ALPHA-S [J].
BAIER, R ;
PIRE, B ;
SCHIFF, D .
PHYSICAL REVIEW D, 1988, 38 (09) :2814-2832
[6]   SOFT AMPLITUDES IN HOT GAUGE-THEORIES - A GENERAL-ANALYSIS [J].
BRAATEN, E ;
PISARSKI, RD .
NUCLEAR PHYSICS B, 1990, 337 (03) :569-634
[7]   PRODUCTION OF SOFT DILEPTONS IN THE QUARK-GLUON PLASMA [J].
BRAATEN, E ;
PISARSKI, RD ;
YUAN, TC .
PHYSICAL REVIEW LETTERS, 1990, 64 (19) :2242-2245
[8]   DEDUCING HARD THERMAL LOOPS FROM WARD IDENTITIES [J].
BRAATEN, E ;
PISARSKI, RD .
NUCLEAR PHYSICS B, 1990, 339 (02) :310-324
[9]   CALCULATION OF THE GLUON DAMPING RATE IN HOT QCD [J].
BRAATEN, E ;
PISARSKI, RD .
PHYSICAL REVIEW D, 1990, 42 (06) :2156-2160
[10]   SINGULARITY STRUCTURE OF MASSLESS QCD AT FINITE TEMPERATURE [J].
CLEYMANS, J ;
DADIC, I .
ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1989, 42 (01) :133-137
12