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Measurement of the differential cross-sections of inclusive, prompt and non-prompt J/psi production in proton-proton collisions at root s=7 TeV
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.
University of Chicago.ORCID iD: 0000-0002-8913-0981
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Number of Authors: 3042
2011 (English)In: Nuclear Physics B, ISSN 0550-3213, Vol. 850, no 3, 387-444 p.Article in journal (Refereed) Published
Abstract [en]

The inclusive J/psi production cross-section and fraction of J/psi mesons produced in B-hadron decays are measured in proton proton collisions at root s = 7 TeV with the ATLAS detector at the LHC, as a function of the transverse momentum and rapidity of the J/psi, using 2.3 pb(-1) of integrated luminosity. The cross-section is measured from a minimum P(T) of 1 GeV to a maximum of 70 GeV and for rapidities within vertical bar y vertical bar < 2.4 giving the widest reach of any measurement of J/psi production to date. The differential production cross-sections of prompt and non-prompt J/psi are separately determined and are compared to Colour Singlet NNLO*, Colour Evaporation Model, and FONLL predictions.

Place, publisher, year, edition, pages
2011. Vol. 850, no 3, 387-444 p.
Keyword [en]
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Subatomic Physics
URN: urn:nbn:se:kth:diva-37415DOI: 10.1016/j.nuclphysb.2011.05.015ISI: 000292952900001ScopusID: 2-s2.0-79960370378OAI: diva2:433804
Swedish Research Council
QC 20110811. Antal författare: 3042.Available from: 2011-08-11 Created: 2011-08-11 Last updated: 2012-02-14Bibliographically approved

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Grahn, Karl-JohanLund-Jensen, BengtStrandberg, JonasLafaye, Remi
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