The prompt and non-prompt production cross-sections for ψ(2S) mesons are measured using 2.1 fb−1 of pp collision data at a centre-of-mass energy of 7 TeV recorded by the ATLAS experiment at the LHC. The measurement exploits the ψ(2S)→J/ψ(→μ+μ−)π+π− decay mode, and probes ψ(2S) mesons with transverse momenta in the range 10≤pT<100 GeV and rapidity |y|<2.0. The results are compared to other measurements of ψ(2S) production at the LHC and to various theoretical models for prompt and non-prompt quarkonium production.
Measurement of the production cross-section of Psi(2S) -> J/psi(->mu+mu-) pi+pi- in pp collisions at sqrt(s) = 7 TeV at ATLAS
G. CHIODINI;GORINI, Edoardo;PRIMAVERA, Margherita;SPAGNOLO, Stefania Antonia;VENTURA, Andrea
2014-01-01
Abstract
The prompt and non-prompt production cross-sections for ψ(2S) mesons are measured using 2.1 fb−1 of pp collision data at a centre-of-mass energy of 7 TeV recorded by the ATLAS experiment at the LHC. The measurement exploits the ψ(2S)→J/ψ(→μ+μ−)π+π− decay mode, and probes ψ(2S) mesons with transverse momenta in the range 10≤pT<100 GeV and rapidity |y|<2.0. The results are compared to other measurements of ψ(2S) production at the LHC and to various theoretical models for prompt and non-prompt quarkonium production.File in questo prodotto:
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