CALCULABLE OBSERVABLES IN QUANTUM CHROMODYNAMICS .1.

被引：21

作者：

TIKTOPOULOS, G

机构：

[1] CERN, Geneva

来源：

NUCLEAR PHYSICS B | 1979年 / 147卷 / 3-4期

关键词：

D O I：

10.1016/0550-3213(79)90320-1

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：

A simple heuristic proof of infrared finiteness to all orders of perturbation theory is given for a class of observables in massless field theories including quantum chromodynamics. This class includes the average energy E(Ω) carried into a given solid angular region Ω by final-state particles in e+e- annihilation and its positive integral powers; it also includes energy correlations between different angular regions: E(Ω1)E(Ω2) ... E(ΩN). It is argued that appropriately defined inclusive jet cross sections are infrared finite, even for vanishing fractional energy resolutions. Extensions to lepton-hadron and hadron-hadron collisions are described. © 1979.

引用

页码：371 / 384

页数：14

共 12 条

[1] ELECTRON-POSITRON ANNIHILATION ENERGY PATTERN IN QUANTUM CHROMODYNAMICS - ASYMPTOTICALLY FREE PERTURBATION-THEORY [J].