Improved parton showers at large transverse momenta

被引：34
|
作者：
Corke, R. [1 ]
Sjostrand, T. [1 ]
机构：
[1] Lund Univ, Dept Astron & Theoret Phys, S-22362 Lund, Sweden
来源：
EUROPEAN PHYSICAL JOURNAL C | 2010年 / 69卷 / 1-2期
关键词：
MATRIX-ELEMENT CORRECTIONS; RADIATION; SIMULATIONS; MODEL;
D O I：
10.1140/epjc/s10052-010-1409-0
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：
Several methods to improve the parton-shower description of hard processes by an injection of matrix-element-based information have been presented over the years. In this article we study (re)weighting schemes for the first/hardest emission. One objective is to provide a consistent matching of the POWHEG next-to-leading order generator to the Pythia shower algorithms. Another is to correct the default behaviour of these showers at large transverse momenta, based on a comparison with real-emission matrix elements.
引用
收藏
页码：1 / 18
页数：18
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