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Volume 374 - Light Cone 2019 - QCD on the light cone: from hadrons to heavy ions (LC2019) - Contributed
Constraints on the Intrinsic Charm Content of the Proton from Recent ATLAS Data
G. Lykasov,* S.J. Brodsky, V.A. Bednyakov, A.V. Lipatov, J. Smiesko, S. Tokar
*corresponding author
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Pre-published on: 2020 May 06
Published on: 2020 May 26
We investigate the possibility to constrain the intrinsic charm probability in proton $w_{c}$ using first ATLAS data on the associated production of prompt photons and charm-quark jets in $pp$ collisions at $\sqrt{s} = 8$ TeV. The upper limit on the intrinsic charm probability in proton $w_{ul} < 1.93$\% is obtained at the 68\% confidence level. This constraint is primarily determined by the theoretical scale and systematical experimental uncertainties.
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