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arXiv 0803.3307hep-ph
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强子对撞机中双玻色子蒙特卡罗事件的加权

Weighting Di-Boson Monte Carlo Events in Hadron Colliders

Gideon Bella

摘要:

本文详细研究了双玻色子蒙特卡罗程序Pythia,MC@NLO和Baur,Han和Ohnemus(BHO)。这些计划都没有涵盖双玻色子生产的所有方面。BHO代码用于产生事件权重,模拟Pythia和MC@NLO事件中的异常三重规范耦合。以相同的方式,也可以引入MC@NLO中大多数双玻色子通道所缺少的玻色子自旋信息。该加权码可用于研究与蒙特卡罗发生器的各个方面相关的系统效应,例如部分子分布函数。一个详细的研究比较了这三个发生器产生的事件样本的分布显示了一个很好的协议,没有喷流的事件。三个样本之间的一些差异,观察事件与射流。这些差异大部分可以归因于三个计划中喷气机生产的不同方式。

英文摘要:

A detailed study of the di-boson Monte Carlo programs Pythia, MC@NLO and the program of Baur, Han and Ohnemus (BHO) is performed. None of these programs cover all aspects of di-boson production. The BHO code is used to produce event weights emulating anomalous triple gauge couplings in Pythia and MC@NLO events. In the same way, boson spin information which is missing for most di-boson channels in MC@NLO can be introduced as well. This weighting code can be used to study systematic effects related to various aspects of the Monte Carlo generators, e.g. parton distribution functions. A detailed study comparing distributions of event samples generated with these three generators shows a nice agreement for events without jets. Some differences between the three samples are observed for events with jets. Most of these differences can be attributed to the different ways of jet production in the three programs.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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