JET CROSS-SECTIONS AT LEADING DOUBLE LOGARITHM IN E+E- ANNIHILATION

被引：155

作者：

BROWN, N

STIRLING, WJ

机构：

[1] UNIV DURHAM,DEPT PHYS,DURHAM DH1 3LE,ENGLAND

[2] UNIV DURHAM,DEPT MATH SCI,DURHAM DH1 3LE,ENGLAND

来源：

PHYSICS LETTERS B | 1990年 / 252卷 / 04期

关键词：

D O I：

10.1016/0370-2693(90)90502-W

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We examine the leading double logarithm structure in the calculation of jet fractions using the JADE algorithm, based on a jet-jet mass cut ys. We find that there is no simple formula allowing us to explicitly sum these logarithms, a necessary procedure if we are to apply perturbation theory in the region y << 1 where these double logarithms are large. This casts doubt on the usefulness of such an algorithm for comparing the predictions of perturbative QCD with the experimental measurements at small y.

引用

页码：657 / 662

页数：6

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