论文标题
$ pp $和$ ppb $ collisions的颜色偶极子图片在Cern-LHC上
The color dipole picture for prompt photon production in $pp$ and $pPb$ collisions at the CERN-LHC
论文作者
论文摘要
对LHC Energy Legimes的$ PP $和$ PA $碰撞的重点进行的QCD颜色偶极子图片中的迅速光子产生的研究进行了研究。考虑到更新的现象学颜色偶极模型，我们对差分横截面的预测是光子横向动量的函数，这些模型考虑了QCD Gluon饱和物理学。将结果直接与CMS和ATLAS协作提供的最新实验测量结果进行了比较，该测量显示了没有免费参数的所有速度垃圾箱中的合理一致性。考虑到从低 - 到高$ p_ {t} $范围的所有速度箱中数据的很好描述，请特别注意IPSAT模型。结果，自由参数方法成功地描述了迅速光子生产的LHC数据，而根据新数据的观点，介绍了13-TEV数据的新预测以确认这种前景。
A study on the prompt photon production within the QCD color dipole picture with emphasis in $pp$ and $pA$ collisions at the LHC energy regimes is performed. We present predictions for the differential cross section as a function of photon transverse momentum at different rapidity bins considering updated phenomenological color dipole models, which take into account the QCD gluon saturation physics. The results are directly compared to the recent experimental measurements provided by CMS and ATLAS Collaborations, showing a reasonable agreement in all rapidity bins with no free parameters. Special attention is given to the IPSAT model given its good description of the data in all rapidity bins from low- to high-$p_{T}$ ranges. As a result, a free-parameter approach has succeeded in describing the LHC data for prompt photon production, while new predictions for the 13-TeV data is presented in view of new data to confirm such prospect.
