2-LOOP EFFECTS IN QCD SUM-RULES FOR LIGHT MESONS

被引：44

作者：

SURGULADZE, LR ^{[1
]}

TKACHOV, FV ^{[1
]}

机构：

[1] TBILISI STATE UNIV,DEPT HIGH ENERGY PHYS,TBILISI 380086,GEORGIA,USSR

来源：

NUCLEAR PHYSICS B | 1990年 / 331卷 / 01期

关键词：

D O I：

10.1016/0550-3213(90)90017-8

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 calculate two-loop corrections to the coefficient functions of the dim ≤ 4 contributions to the vacuum correlator of two flavour-diagonal vector, scalar, and pseudoscalar currents. We formulate the renormalization-group invariant criteria for the convergence of the perturbation theory series for the coefficient functions. We also study effects of the calculated corrections on the sum rules for the ρ{variant}, φ{symbol}, δ(980) and ε(1300) mesons. © 1990.

引用

页码：35 / 65

页数：31

共 51 条

[21] TECHNIQUES OF DIMENSIONAL REGULARIZATION AND THE 2-POINT FUNCTIONS OF QCD AND QED [J].

NARISON, S .

PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 1982, 84 (04) :263-399

[22]

NARISON S, 1986, CERN TH4624 PREPR

[23] WILSON OPERATOR EXPANSION - CAN IT FAIL [J].

NOVIKOV, VA ;

SHIFMAN, MA ;

VAINSHTEIN, AI ;

ZAKHAROV, VI .

NUCLEAR PHYSICS B, 1985, 249 (03) :445-471

[24]

PIVOVAROV GB, 1986, INR P0480 PREPR

[25]

PIVOVAROV GB, 1986, INR P0459 PREPR

[26]

RADIUSHKIN AV, 1983, FIZ ELEM CHASTITS AT, V14, P58

[27] HADRON PROPERTIES FROM QCD SUM-RULES [J].

REINDERS, LJ ;

RUBINSTEIN, H ;

YAZAKI, S .

PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 1985, 127 (01) :1-97

[28]

REINDERS LJ, 1981, RL81078 PREPR

[29]

RUBINSTEIN HR, 1982, 21 P INT C HIGH EN P

[30] QCD AND RESONANCE PHYSICS - THEORETICAL FOUNDATIONS [J].

SHIFMAN, MA ;

VAINSHTEIN, AI ;

ZAKHAROV, VI .

NUCLEAR PHYSICS B, 1979, 147 (05) :385-447

← 1 2 3 4 5 6 →