Measurement of the production cross-section of psi(2S) -> J/psi(-> mu(+)mu(-))pi(+) pi(-) in pp collisions at root s=7 TeV at ATLAS

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) --> J/psi(--> mu(+)mu(-)) pi(+)pi(-) decay mode...

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Bibliographic Details
Published in:The journal of high energy physics 2014, Vol.9 (9), p.1
Main Authors: Aad, G., Jovicevic, Jelena, Kuwertz, Emma, Lund-Jensen, Bengt, Morley, Anthony, Strandberg, Jonas, Zwalinski, L., et al
Format: Article
Language:English
Subjects:
Hadron-Hadron Scattering
Online Access:Get full text
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Summary: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) --> J/psi(--> mu(+)mu(-)) pi(+)pi(-) decay mode, and probes psi(2S) mesons with transverse momenta in the range 10 <= p(T) < 100 GeV and rapidity |y| < 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.
ISSN:1029-8479
1126-6708
DOI:10.1007/JHEP09(2014)079