A modified CKKW matrix element merging approach to angular-ordered parton showers

被引：54

作者：

Hamilton, Keith ^{[1
]}

Richardson, Peter ^{[2
]}

Tully, Jon ^{[2
]}

机构：

[1] Catholic Univ Louvain, Ctr Particle Phys & Phenomenol, B-1348 Louvain, Belgium

[2] Univ Durham, Dept Phys, Inst Particle Phys Phenomenol, Durham DH1 3LE, England

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2009年 / 11期

基金：

英国科学技术设施理事会;

关键词：

Phenomenological Models; QCD; QCD; ANNIHILATION;

D O I：

10.1088/1126-6708/2009/11/038

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 modified version of the CKKW matrix element merging algorithm is presented, suitable for use in an angular-ordered parton shower, using truncated showers and forced splittings. The algorithm is implemented in the Herwig++ Monte Carlo event generator for the benchmark process e(+)e(-) -> hadrons. Results are presented at parton and hadron levels, demonstrating a smooth merging between the matrix elements and parton shower and an improved description of LEP data.

引用

页数：39

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