The inclusive J/ψ production cross-section and fraction of J/ψ mesons produced in B-hadron decays are measured in proton–proton collisions at √s = 7 TeV with the ATLAS detector at the LHC, as a func- tion of the transverse momentum and rapidity of the J/ψ, using 2.3 pb−1 of integrated luminosity. The cross-sectionismeasuredfromaminimumpT of1GeVtoamaximumof70GeVandforrapiditieswithin |y| < 2.4 giving the widest reach of any measurement of J/ψ production to date. The differential produc- tion cross-sections of prompt and non-prompt J /ψ are separately determined and are compared to Colour Singlet NNLO⋆, Colour Evaporation Model, and FONLL predictions.

Measurement of the differential cross-sections of inclusive, prompt and non-prompt production in proton–proton collisions at

CACCIA, MASSIMO;
2011-01-01

Abstract

The inclusive J/ψ production cross-section and fraction of J/ψ mesons produced in B-hadron decays are measured in proton–proton collisions at √s = 7 TeV with the ATLAS detector at the LHC, as a func- tion of the transverse momentum and rapidity of the J/ψ, using 2.3 pb−1 of integrated luminosity. The cross-sectionismeasuredfromaminimumpT of1GeVtoamaximumof70GeVandforrapiditieswithin |y| < 2.4 giving the widest reach of any measurement of J/ψ production to date. The differential produc- tion cross-sections of prompt and non-prompt J /ψ are separately determined and are compared to Colour Singlet NNLO⋆, Colour Evaporation Model, and FONLL predictions.
2011
G., Aad; B., Abbott; J., Abdallah; A. A., Abdelalim; A., Abdesselam; O., Abdinov; B., Abi; M., Abolins; H., Abramowicz; H., Abreu; E., Acerbi; B. S., ...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11383/1804121
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