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arXiv 1507.02549hep-phhep-ex
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在LHC产生重荷希格斯玻色子

Heavy charged Higgs boson production at the LHC

Celine Degrande, Maria Ubiali, Marius Wiesemann, Marco Zaro

摘要:

在本文中,我们研究了在大型强子对撞机中,在II型双希格斯偶态模型中,重荷希格斯玻色子玻色子与重夸克的产生。我们提出的第一次全微分的结果在四味计划在非线性光学精度,无论是在固定的顺序,包括与部分子淋浴匹配。相关的微分分布研究的两个值的带电玻色子质量和一个彻底的比较在四味和五味计划得到的预测之间进行。我们发现,这两个计划之间的协议是改善的NLO(+PS)的可观测量包括在底夸克的自由度的修正。我们认为,四味方案导致更可靠的预测,由于其准确的描述的底夸克运动学和它的小依赖于蒙特卡洛,这反过来又是相当大的五味方案。一套详细的建议,在LHC的实验分析模拟这个过程中提供。

英文摘要:

In this paper we study the production of a heavy charged Higgs boson in association with heavy quarks at the LHC, in a type-II two-Higgs-doublet model. We present for the first time fully-differential results obtained in the four-flavour scheme at NLO accuracy, both at fixed order and including the matching with parton showers. Relevant differential distributions are studied for two values of the charged boson mass and a thorough comparison is performed between predictions obtained in the four- and five-flavour schemes. We show that the agreement between the two schemes is improved by NLO(+PS) corrections for observables inclusive in the degrees of freedom of bottom quarks. We argue that the four-flavour scheme leads to more reliable predictions, thanks to its accurate description of the bottom-quark kinematics and its small dependence on the Monte Carlos, which in turn is rather large in the five-flavour scheme. A detailed set of recommendations for the simulation of this process in experimental analyses at the LHC is provided.

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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