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arXiv · 1512.03657

Measurement of the differential cross-sections of prompt and non-prompt production of $J/ψ$ and $ψ(2\mathrm{S})$ in $pp$ collisions at $\sqrt{s} = 7$ and $8$ TeV with the ATLAS detector

ATLAS Collaboration
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Abstract

The production rates of prompt and non-prompt $J/ψ$ and $ψ(2\mathrm{S})$ mesons are measured using 2.1 $fb^{-1}$ and 11.4 $fb^{-1}$ of data collected with the ATLAS experiment at the LHC, in proton-proton collisions at $\sqrt{s}=7$ and 8 TeV respectively. Production cross-sections for both prompt and non-prompt production sources, ratios of $ψ(2\mathrm{S})$ to $J/ψ$ production, and fractions of non-prompt to inclusive production for $J/ψ$ and $ψ(2\mathrm{S})$ are measured double-differentially as a function of meson $p_{T}$ and rapidity. These measurements are made in a restricted fiducial volume and also corrected for geometrical acceptance after which they are compared to a variety of theoretical predictions.

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ATLAS Collaboration. 2016-06-16. Measurement of the differential cross-sections of prompt and non-prompt production of $J/ψ$ and $ψ(2\mathrm{S})$ in $pp$ collisions at $\sqrt{s} = 7$ and $8$ TeV with the ATLAS detector. https://doi.org/10.1140/epjc%2Fs10052-016-4050-8

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