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arXiv 1012.0527hep-phhep-ex
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在大型强子对撞机上利用顶部极化探测顶部带电希格斯粒子的产生

Probing top charged-Higgs production using top polarization at the Large Hadron Collider

Katri Huitu, Santosh Kumar Rai, Kumar Rao, Saurabh D. Rindani, Pankaj Sharma

摘要:

我们研究了在大型强子对撞机上的II型两个Higgs双重态模型中与带电Higgs相关联的单顶产生。顶部的极化,反映在其衰变产物的角分布中,可以是其产生过程中新物理的敏感探针。我们给出了理论上期望的顶荷Higgs产生的顶极化,这与标准模型中与之密切相关的t-W产生过程中的顶极化有很大的不同.然后,我们表明,方位角对称性,从衰变轻子角分布在实验室框架中构建,是一个敏感的探针顶部极化,并可用于约束参数参与顶部带电希格斯生产。

英文摘要:

We study single top production in association with a charged Higgs in the type II two Higgs doublet model at the Large Hadron Collider. The polarization of the top, reflected in the angular distributions of its decay products, can be a sensitive probe of new physics in its production. We present theoretically expected polarizations of the top for top charged-Higgs production, which is significantly different from that in the closely related process of t-W production in the Standard Model. We then show that an azimuthal symmetry, constructed from the decay lepton angular distribution in the laboratory frame, is a sensitive probe of top polarization and can be used to constrain parameters involved in top charged-Higgs production.

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