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Volume 316 - XXVI International Workshop on Deep-Inelastic Scattering and Related Subjects (DIS2018) - WG5: Physics with Heavy Flavours
Theoretical analysis of the double parton scattering in quarkonium production in proton-proton collision at LHC
N. Yamanaka,* J.P. Lansberg, H.S. Shao, Y.J. Zhang
*corresponding author
Full text: pdf
Pre-published on: 2018 September 20
Published on: 2018 November 23
The production process of quarkonia in proton-proton ($pp$) collision is a very good probe of the parton structure of the proton.
Recent experimental data of the production of $J/\psi$+vector boson or quarkonium pairs at the LHC and Tevatron suggest the relevance of double parton scatterings (DPS).
We discuss here the single parton scattering (SPS) contribution to the $J/\psi +Z$, $J/\psi +W$, and $J/\psi +J/\psi$ productions in hadron collisions.
By revisiting the computations of the SPS contributions to the $J/\psi+Z$ and $J/\psi +W$ productions, we demonstrate that the ATLAS data in fact show evidence for DPS.
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