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Exclusive and diffractive $$\gamma \gamma $$ γ γ production in PbPb collisions at the LHC, HE-LHC and FCC
The European Physical Journal C ( IF 4.4 ) Pub Date : 2020-05-30 , DOI: 10.1140/epjc/s10052-020-8006-7 R. O. Coelho , V. P. Gonçalves , D. E. Martins , M. Rangel
The European Physical Journal C ( IF 4.4 ) Pub Date : 2020-05-30 , DOI: 10.1140/epjc/s10052-020-8006-7 R. O. Coelho , V. P. Gonçalves , D. E. Martins , M. Rangel
In this paper we present a detailed analysis of the contribution of the Light-by-Light (LbL), Durham and double diffractive processes for the diphoton production in ultraperipheral PbPb collisions at the Large Hadron Collider (LHC), High-Energy LHC (HE-LHC) and Future Circular Collider (FCC). The acceptance of the central and forward LHC detectors is taken into account and predictions for the invariant mass, rapidity, transverse momentum and acoplanarity distributions are presented. Our results indicate that the contribution of the Durham process is negligible and that the double diffractive process can be strongly suppressed by the exclusivity cuts, which will allow to perform a precise analysis of the LbL scattering, as well the search of beyond Standard Model physics in this final state.
中文翻译:
LHC,HE-LHC和FCC在PbPb碰撞中产生的唯一和衍射$$ \γ\γ$$γγ
在本文中,我们对大型强子对撞机(LHC),高能LHC(HE)的超外围PbPb碰撞中双光子产生中的光-光(LbL),达勒姆(Durham)和双衍射过程的贡献进行了详细分析。-LHC)和未来圆形对撞机(FCC)。考虑到中央和前向LHC探测器的可接受性,并给出了不变质量,速度,横向动量和非平面分布的预测。我们的结果表明,达勒姆过程的贡献可忽略不计,并且排他性削减可以极大地抑制双重衍射过程,这将允许对LbL散射进行精确的分析,以及对超越标准模型物理学的研究。这个最终状态。
更新日期:2020-05-30
中文翻译:
LHC,HE-LHC和FCC在PbPb碰撞中产生的唯一和衍射$$ \γ\γ$$γγ
在本文中,我们对大型强子对撞机(LHC),高能LHC(HE)的超外围PbPb碰撞中双光子产生中的光-光(LbL),达勒姆(Durham)和双衍射过程的贡献进行了详细分析。-LHC)和未来圆形对撞机(FCC)。考虑到中央和前向LHC探测器的可接受性,并给出了不变质量,速度,横向动量和非平面分布的预测。我们的结果表明,达勒姆过程的贡献可忽略不计,并且排他性削减可以极大地抑制双重衍射过程,这将允许对LbL散射进行精确的分析,以及对超越标准模型物理学的研究。这个最终状态。