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

Paper

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

Abstract

The production rates of prompt and non-prompt

and

mesons are measured using 2.1

and 11.4

of data collected with the ATLAS experiment at the LHC, in proton-proton collisions at

and 8 TeV respectively. Production cross-sections for both prompt and non-prompt production sources, ratios of

production, and fractions of non-prompt to inclusive production for

and

are measured double-differentially as a function of meson

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.