Measurement of the production cross-section of psi(2S) - GT J/psi(- GT mu(+)mu(-))pi(+) pi(-) in pp collisions at root s=7 TeV at ATLAS
Popovic, D. S.
Vranješ Milosavljević, Marija
ATLAS Collaboration (ukupan broj autora: 2876)
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The prompt and non-prompt production cross-sections for psi(2S) mesons are measured using 2.1 fb(-1) of pp collision data at a centre-of-mass energy of 7TeV recorded by the ATLAS experiment at the LHC. The measurement exploits the psi(2S) -- GT J/psi(-- GT mu(+)mu(-)) pi(+)pi(-) decay mode, and probes psi(2S) mesons with transverse momenta in the range 10 LT = p(T) LT 100 GeV and rapidity |y| LT 2.0. The results are compared to other measurements of psi(2S) production at the LHC and to various theoretical models for prompt and non-prompt quarkonium production.
Source:Journal of High Energy Physics, 2014, 9, 1-49
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