论文标题

一项关于CERN-LHC能量核碰撞中孤立光子产生的研究

A study on the isolated photon production in nuclear collisions at the CERN-LHC energies

论文作者

Santos, G. Sampaio dos, da Silveira, G. Gil, Machado, M. V. T.

论文摘要

考虑到更新的现象学色偶极偶极子模型,在Parton饱和图中对高能核冲突中的迅速光子产生进行分析。结果面临着爱丽丝,地图集和CMS实验在不同速度箱处的光子横向动量方面进行的测量。结果,我们表明,及时的光子生产在$ aa $事件中表现出与碰撞几何特性相关的$ aa $事件的不同尺度,并且可以在颜色偶极式形式主义中正确解决。

An analysis of prompt photon production in high energy nuclear collisions at the LHC energy regime is performed within the parton saturation picture taking into account the updated phenomenological color dipole models. The results are confronted with the measurements made by the ALICE, ATLAS, and CMS experiments in terms of photon transverse momentum at different rapidity bins. As a result, we show that the prompt photon production exhibits distinct scalings in $AA$ events associated to geometrical properties of the collision and can be properly addressed in the color dipole formalism.

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