Measurement of the differential cross-sections of prompt and non-prompt production of J/Ï and Ï(2S) in pp collisions at s=7 and 8Â TeV with the ATLAS detector
G. Aad (CPPM, Aix-Marseille Université and CNRS/IN2P3, Marseille, France); B. Abbott (Homer L. Dodge Department of Physics and Astronomy, University of Oklahoma, Norman, OK, USA); J. Abdallah (Institute of Physics, Academia Sinica, Taipei, Taiwan); O. Abdinov (Institute of Physics, Azerbaijan Academy of Sciences, Baku, Azerbaijan); R. Aben (Nikhef National Institute for Subatomic Physics and University of Amsterdam, Amsterdam, The Netherlands); et al - Show all 2866 authors
The production rates of prompt and non-prompt J/ψ and ψ(2S) mesons in their dimuon decay modes are measured using 2.1 and 11.4 fb -1 of data collected with the ATLAS experiment at the Large Hadron Collider, in proton–proton collisions at s=7 and 8 respectively. Production cross-sections for prompt as well as non-prompt sources, ratios of ψ(2S) to J/ψ production, and the fractions of non-prompt production for J/ψ and ψ(2S) are measured as a function of meson transverse momentum and rapidity. The measurements are compared to theoretical predictions.