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

et al.
Abstract

The production rates of prompt and non-prompt J/ψ$$J/\psi $$ and ψ(2S)$$\psi (2\mathrm {S})$$ mesons in their dimuon decay modes are measured using 2.1 and 11.4 fb-1$$^{-1}$$ of data collected with the ATLAS experiment at the Large Hadron Collider, in proton–proton collisions at s=7$$\sqrt{s}=7$$ and 8 respectively. Production cross-sections for prompt as well as non-prompt sources, ratios of ψ(2S)$$\psi (2\mathrm {S})$$ to J/ψ$$J/\psi $$ production, and the fractions of non-prompt production for J/ψ$$J/\psi $$ and ψ(2S)$$\psi (2\mathrm {S})$$ are measured as a function of meson transverse momentum and rapidity. The measurements are compared to theoretical predictions.

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