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.
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页数：39
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