Role of the intrinsic charm content of the nucleon from various light-cone models on γ+c-jet production

  • Having a precise knowledge of the charm quark component can lead to a better understanding of the fundamental structure of the nucleon. Furthermore, the charm quark distribution function plays an important role in the study of many processes which are sensitive to the charm quark content of the nucleon. In the standard global analysis of parton distribution functions (PDFs), the charm quark distribution arises perturbatively through the splitting of the gluon int→charm-anticharm pairs in the DGLAP evolution equations. Nevertheless, the existence of nonperturbative intrinsic charm quarks in the proton has also been predicted by QCD. In this paper, we study some phenomenological models within the light-cone framework to predict the nonperturbative intrinsic charm quark content of the nucleon. We investigate the impact of these models on the prediction of γ+c-jet production in pp collisions at the LHC and compare our results on pp→γ+c-jet with the experimental data of D0.
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S. Rostami, Muhammad Goharipour and Alireza Aleedaneshvar. Role of the intrinsic charm content of the nucleon from various light-cone models on γ+c-jet production[J]. Chinese Physics C, 2016, 40(12): 123104. doi: 10.1088/1674-1137/40/12/123104
S. Rostami, Muhammad Goharipour and Alireza Aleedaneshvar. Role of the intrinsic charm content of the nucleon from various light-cone models on γ+c-jet production[J]. Chinese Physics C, 2016, 40(12): 123104.  doi: 10.1088/1674-1137/40/12/123104 shu
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Received: 2016-06-24
Revised: 2016-08-01
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Role of the intrinsic charm content of the nucleon from various light-cone models on γ+c-jet production

Abstract: Having a precise knowledge of the charm quark component can lead to a better understanding of the fundamental structure of the nucleon. Furthermore, the charm quark distribution function plays an important role in the study of many processes which are sensitive to the charm quark content of the nucleon. In the standard global analysis of parton distribution functions (PDFs), the charm quark distribution arises perturbatively through the splitting of the gluon int→charm-anticharm pairs in the DGLAP evolution equations. Nevertheless, the existence of nonperturbative intrinsic charm quarks in the proton has also been predicted by QCD. In this paper, we study some phenomenological models within the light-cone framework to predict the nonperturbative intrinsic charm quark content of the nucleon. We investigate the impact of these models on the prediction of γ+c-jet production in pp collisions at the LHC and compare our results on pp→γ+c-jet with the experimental data of D0.

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