Constraints on the Intrinsic Charm Content of the Proton from Recent ATLAS Data

Lykasov, Gennady; Brodsky, Stanley J.; Bednyakov, V. A.; Lipatov, A. V.; Smiesko, J.; Tokar, S.

doi:10.22323/1.374.0060

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 and S. Tokar

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Pre-published on: May 06, 2020

Published on: May 26, 2020

Abstract

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.

DOI: https://doi.org/10.22323/1.374.0060

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