GAUGE-INVARIANCE AND PERTURBATIVE CALCULATIONS IN QUANTUM CHROMODYNAMICS

被引：12

作者：

CURCI, G ^{[1
]}

DEMILIO, E ^{[1
]}

机构：

[1] SCUOLA NORMALE SUPER,PISA,ITALY

来源：

PHYSICS LETTERS B | 1979年 / 83卷 / 02期

关键词：

D O I：

10.1016/0370-2693(79)90685-3

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

It is possible to regularize infra-red divergences of QCD by giving a mass to the gluon in such a way that the Becchi-Rouet-Stora invariance of the action is preserved. This regularization allows straightforward extension of dispersive techniques to the computation of radiative corrections to on-shell processes in QCD. Problems of gauge dependence, however, exist: care must be taken in the choice of the expansion parameter and only physically meaningful processes are gauge independent, e.g., cross sections summed over all final degenerate states. © 1979.

引用

页码：199 / 202

页数：4

共 37 条

[1] INFRARED SINGULARITIES AND MASSIVE FIELDS [J].

APPELQUIST, T ;

CARAZZONE, J .

PHYSICAL REVIEW D, 1975, 11 (10) :2856-2861

[2] INFRARED FINITENESS IN YANG-MILLS THEORIES [J].

APPELQUIST, T ;

CARAZZONE, J ;

KLUBERGSTERN, H ;

ROTH, M .

PHYSICAL REVIEW LETTERS, 1976, 36 (14) :768-772

[3] PHYSICAL PROCESSES AND IR PROBLEM IN GAUGE THEORIES [J].

APPELQUIST, T ;

CARAZZONE, J .

NUCLEAR PHYSICS B, 1977, 120 (01) :77-95

[4] RENORMALIZATION OF ABELIAN HIGGS-KIBBLE MODEL [J].

BECCHI, C ;

ROUET, A ;

STORA, R .

COMMUNICATIONS IN MATHEMATICAL PHYSICS, 1975, 42 (02) :127-162

[5]

BIALYNICKIBIRUL.I, 1974, PHYS REV D, V2, P291

[6] ON THE GAUGE PROPERTIES OF GREENS FUNCTIONS [J].

BIALYNICKIBIRULA, I .

NUOVO CIMENTO, 1960, 17 (06) :951-955

[7] BROKEN SCALE INVARIANCE IN SCALAR FIELD THEORY [J].

CALLAN, CG .

PHYSICAL REVIEW D, 1970, 2 (08) :1541-&

[8]

CASHWELL W, 1974, PHYS LETT B, V49, P291

[9]

CORNWALL J, 1976, 76TEP10 UCLA PREPR

[10] INFRARED BEHAVIOR OF NON-ABELIAN GAUGE THEORIES [J].

CORNWALL, JM ;

TIKTOPOULOS, G .

PHYSICAL REVIEW D, 1976, 13 (12) :3370-3397

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