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arXiv · 1808.09884

Theoretical analysis of double parton scatterings in quarkonium production in proton-proton collisions at the LHC

Nodoka Yamanaka·Jean-Philippe Lansberg·Hua-Sheng Shao·Yu-Jie Zhang
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Abstract

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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Nodoka Yamanaka, Jean-Philippe Lansberg, Hua-Sheng Shao, Yu-Jie Zhang. 2018-08-29. Theoretical analysis of double parton scatterings in quarkonium production in proton-proton collisions at the LHC. https://arxiv.org/abs/1808.09884

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