RESUMMED MULTIPLICITY MOMENTS

被引:11
作者
CUYPERS, F
TESIMA, K
机构
[1] Centre for Particle Theory, Department of Physics, University of Durham, Durham
来源
ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS | 1991年 / 52卷 / 01期
关键词
D O I
10.1007/BF01412328
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
The multiplicity distribution of hadrons in a jet is reanalysed. The O(1/square-root ln(W2/LAMBDA-QCD2)) correction to the double-log summation is so large that its addition makes the value of the multiplicity moments unphysical at the current energies of e+ e- annihilation. This implies the necessity of systematic resummation of the whole series in powers of 1/square-root ln(W2/LAMBDA-QCD2). In this article we perform this resummation. In fact, a formal exact solution of the integral equation, which gives recursion relations among the multiplicity moments, takes the form of a geometric series. The resummation reduces the correction substantially.
引用
收藏
页码:69 / 78
页数:10
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