The production rates of prompt and non-prompt J/ψJ/ψ and ψ(2S)ψ(2S) 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√=7s=7 and 8 respectively. Production cross-sections for prompt as well as non-prompt sources, ratios of ψ(2S)ψ(2S) to J/ψJ/ψ production, and the fractions of non-prompt production for J/ψJ/ψ and ψ(2S)ψ(2S) are measured as a function of meson transverse momentum and rapidity. The measurements are compared to theoretical predictions.
Measurement of the differential cross-sections of prompt and non-prompt production of J / ψ and ψ ( 2 S ) in pp collisions at √s = 7 and 8 TeV with the ATLAS detector
CAVASINNI, VINCENZO;DELL'ORSO, MAURO;DONATI, SIMONE;RODA, CHIARA MARIA ANGELA;Verducci, M.;
2016-01-01
Abstract
The production rates of prompt and non-prompt J/ψJ/ψ and ψ(2S)ψ(2S) 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√=7s=7 and 8 respectively. Production cross-sections for prompt as well as non-prompt sources, ratios of ψ(2S)ψ(2S) to J/ψJ/ψ production, and the fractions of non-prompt production for J/ψJ/ψ and ψ(2S)ψ(2S) are measured as a function of meson transverse momentum and rapidity. The measurements are compared to theoretical predictions.File in questo prodotto:
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