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北美退伍军人节(Veterans Day),12 日无更新
arXiv 2106.01796hep-ph
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LHC的光子物理学

Physics from Photons at the LHC

L. A. Harland-Lang

摘要:

LHC碰撞可以作为初始状态的光子源。这一机制在产生具有电弱耦合的粒子方面起着重要作用,而对LHC光子引发(PI)产生的精确解释是LHC精密物理方案的关键组成部分。我将讨论直接通过结构功能方法对PI过程建模的可能性。这可以在生产截面中提供百分比水平的精度,并且因此很好地定位以考虑LHC精度要求。这种形式主义还允许人们利用光子的另一个有用的特征,即它们是色单态的,并且通常可以从质子弹性(或准弹性)发射。我将讨论最近的工作的应用程序的结构函数的方法精确计算PI生产的包容性模式,并与快度差距,这可以提供一个独特的探测标准模型和物理超越它的“排他性”的过程。

英文摘要:

LHC collisions can act as a source of photons in the initial state. This mechanism plays an important role in the production of particles with electroweak couplings, and a precise account of photon-initiated (PI) production at the LHC is a key ingredient in the LHC precision physics programme. I will discuss the possibility of modelling PI processes directly via the structure function approach. This can provide percent level precision in the production cross sections, and is therefore well positioned to account for LHC precision requirements. This formalism in addition allows one to make use of another useful feature of photons, namely that they are colour-singlet and can often be emitted elastically (or quasi-elastically) from the proton. I will discuss recent work on applications of the structure function approach to precision calculations of PI production in the inclusive mode, and to 'exclusive' processes with rapidity gaps, which can provide a unique probe of the Standard Model and physics beyond it.

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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