NLO inclusive $J/ψ$ photoproduction at large $P_T$ at HERA and the EIC

We study inclusive J/\psi J / ψ photoproduction at NLO at large P_T P T at HERA and the EIC. Our computation includes NLO QCD leading- P_T P T corrections, QED contributions via an off-shell photon as well as those from J/\psi J / ψ +charm channels. For the latter, we employ the variable-flavour-num...

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Published inSciPost physics proceedings no. 8; p. 011
Main Authors Flore, Carlo, Lansberg, Jean-Philippe, Shao, Hua-Sheng, Yedelkina, Yelyzaveta
Format Journal Article
LanguageEnglish
Published SciPost 11.07.2022
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Summary:We study inclusive J/\psi J / ψ photoproduction at NLO at large P_T P T at HERA and the EIC. Our computation includes NLO QCD leading- P_T P T corrections, QED contributions via an off-shell photon as well as those from J/\psi J / ψ +charm channels. For the latter, we employ the variable-flavour-number scheme. Our results are found to agree with the latest HERA data by H1 and provide, for the first time, a reliable estimate of the EIC reach for such a measurement. Finally, we demonstrate the observability of J/\psi J / ψ +charm production and the sensitivy to probe the non-perturbative charm content of the proton at high x x , also known as intrinsic charm, at the EIC.
ISSN:2666-4003
2666-4003
DOI:10.21468/SciPostPhysProc.8.011