Two-Jet Rate in e+e- at Next-to-Next-to-Leading-Logarithmic Order

被引：45

作者：

Banfi, Andrea ^{[1
]}

McAslan, Heather ^{[1
]}

Monni, Pier Francesco ^{[2
]}

Zanderighi, Giulia ^{[2
,3
]}

机构：

[1] Univ Sussex, Dept Phys & Astron, Brighton BN1 9RH, E Sussex, England

[2] Univ Oxford, Rudolf Peierls Ctr Theoret Phys, Oxford OX1 3PN, England

[3] CERN, Dept Theoret Phys, CH-1211 Geneva 23, Switzerland

来源：

PHYSICAL REVIEW LETTERS | 2016年 / 117卷 / 17期

基金：

欧洲研究理事会;

关键词：

EVENT SHAPE DISTRIBUTIONS; QCD; ALGORITHM; TESTS;

D O I：

10.1103/PhysRevLett.117.172001

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present the first next-to-next-to-leading-logarithmic resummation for the two-jet rate in e(+)e(-) annihilation in the Durham and Cambridge algorithms. The results are obtained by extending the ARES method to observables involving any global, recursively infrared and collinear safe jet algorithm in e(+)e(-) collisions. As opposed to other methods, this approach does not require a factorization theorem for the observables. We present predictions matched to next-to-next-to-leading order and a comparison to LEP data.

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