Production of $\gamma\gamma+$2 jets from double parton scattering in proton-proton collisions at the LHC

分类： 物理学 >> 核物理学 提交时间： 2016-09-13

TAO Jun-Quan ZHANG Si-Jing SHEN Yu-Qiao FAN Jia-Wei CHEN Guo-Ming CHEN He-Sheng

摘要： Cross sections for the production of pairs of photons plus two additional jets produced from double parton scattering in high-energy proton-proton collisions at the LHC are calculated for the first time. The estimates are based on the theoretical perturbative QCD predictions for the productions of \gamma\gamma at next-to-next-to-leading-order, jet + jet and \gamma + jet at next-to-leading-order, for their corresponding single-scattering cross sections. The cross sections and expected event rates for \gamma\gamma + 2 jets from double parton scattering, after typical acceptance and selections, are given for proton-proton collisions with the center-of-mass energies of 13 TeV and an integrated luminosity of 100 fb-1 planned for the following two years, and also center-of-mass energies of 14 TeV with 3000 fb-1 of integrated luminosity as LHC designed.

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