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arXiv 1507.07546hep-ph
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在LHC上胶子和希格斯粒子的线性极化以及喷流的产生

Linear polarization of gluons and Higgs plus jet production at the LHC

Cristian Pisano

摘要:

我们证明了质子-质子碰撞中伴随喷注产生的希格斯玻色子玻色子对非极化质子内部胶子的线极化敏感。本文给出了在LHC上可以测量的各种横动量相关观测量在首阶微扰QCD中的解析表达式。由于线极化胶子分布没有实验约束,因此采用两种不同的模型研究了它的影响。特别是,我们发现,$\cos2ϕ$方位不对称是一个非常有前途的观察,因为它可以访问这个新的分布的迹象。

英文摘要:

We show that the production of a Higgs boson in association with a jet in proton-proton collisions is sensitive to the linear polarization of gluons inside unpolarized protons. We present the analytical expressions, at leading order in perturbative QCD, for various transverse momentum dependent observables, which can be measured at the LHC. Since there are no experimental constraints on the linearly polarized gluon distribution, its effects are studied by adopting two different models. In particular, we find that the $\cos2ϕ$ azimuthal asymmetry is a very promising observable because it could give access to the sign of this new distribution.

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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