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

  • 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 γγ at next-to-next-to-leading-order, jet+jet and γ +jet at next-to-leading-order, for their corresponding single-scattering cross sections. The cross sections and expected event rates for γγ +2 jets from double parton scattering, after typical acceptance and selections, are given for proton-proton collisions with the collision energy √s=13 TeV and integrated luminosity of 100 fb-1 planned for the following years, and also √s=14 TeV with 3000 fb-1 of integrated luminosity as the LHC design.
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TAO Jun-Quan, ZHANG Si-Jing, SHEN Yu-Qiao, FAN Jia-Wei, CHEN Guo-Ming and CHEN He-Sheng. Production of γγ+2 jets from double parton scattering in proton-proton collisions at the LHC[J]. Chinese Physics C, 2015, 39(12): 121001. doi: 10.1088/1674-1137/39/12/121001
TAO Jun-Quan, ZHANG Si-Jing, SHEN Yu-Qiao, FAN Jia-Wei, CHEN Guo-Ming and CHEN He-Sheng. Production of γγ+2 jets from double parton scattering in proton-proton collisions at the LHC[J]. Chinese Physics C, 2015, 39(12): 121001.  doi: 10.1088/1674-1137/39/12/121001 shu
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Received: 2015-04-20
Revised: 2015-07-20
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    Supported by National Natural Science Foundation of China (11061140514, 11505208), China Ministry of Science and Technology (2013CB838700) and CAS Center for Excellence in Particle Physics (CCEPP)

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

    Corresponding author: TAO Jun-Quan,
Fund Project:  Supported by National Natural Science Foundation of China (11061140514, 11505208), China Ministry of Science and Technology (2013CB838700) and CAS Center for Excellence in Particle Physics (CCEPP)

Abstract: 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 γγ at next-to-next-to-leading-order, jet+jet and γ +jet at next-to-leading-order, for their corresponding single-scattering cross sections. The cross sections and expected event rates for γγ +2 jets from double parton scattering, after typical acceptance and selections, are given for proton-proton collisions with the collision energy √s=13 TeV and integrated luminosity of 100 fb-1 planned for the following years, and also √s=14 TeV with 3000 fb-1 of integrated luminosity as the LHC design.

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