论文标题
质子的黑暗面
The dark side of the proton
论文作者
论文摘要
我们研究了高光度LHC对轻型巴属暗光子B的敏感性，主要是耦合到夸克，作为质子的组成部分。这是通过允许在PDF演化方程中具有深色光子Parton分布函数（PDF）来实现的。根据深色光子的质量和耦合，标准夸克和Gluon PDF的演变在不同程度上被扭曲。通过分析暗光子对Drell-Yan不变质量分布的尾部的影响，我们证明了LHC在确定竞争性界限上对暗光子参数空间的潜力。
We study the sensitivity of the High-Luminosity LHC to a light baryonic dark photon B, primarily coupled to quarks, as a constituent of the proton. This is achieved by allowing for a dark photon parton distribution function (PDF) in the PDF evolution equations. Depending on the mass and coupling of the dark photon, the evolution of standard quark and gluon PDFs is distorted to varying degrees. By analysing the effect of the dark photon on the tails of Drell-Yan invariant mass distributions, we demonstrate the potential of the LHC in determining competitive bounds on dark photon parameter space.
