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Measurement of differential J/psi production cross sections and forward-backward ratios in p plus Pb collisions with the ATLAS detector
KTH, Skolan för teknikvetenskap (SCI), Fysik, Partikel- och astropartikelfysik.
KTH, Skolan för teknikvetenskap (SCI), Fysik, Partikel- och astropartikelfysik.
KTH, Skolan för teknikvetenskap (SCI), Fysik, Partikel- och astropartikelfysik.ORCID-id: 0000-0003-3867-0336
Vise andre og tillknytning
Rekke forfattare: 28102015 (engelsk)Inngår i: Physical Review C. Nuclear Physics, ISSN 0556-2813, E-ISSN 1089-490X, Vol. 92, nr 3, artikkel-id 034904Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Measurements of differential cross sections for J/psi production in p + Pb collisions at root S-NN= 5.02 TeV at the CERN Large Hadron Collider with the ATLAS detector are presented. The data set used corresponds to an integrated luminosity of 28.1 nb(-1). The J/psi mesons are reconstructed in the dimuon decay channel over the transverse momentum range 8 < PT < 30 GeV and over the center-of-mass rapidity range -2.87 < y* < 1.94. Prompt J/psi are separated from J/psi resulting from b-hadron decays through an analysis of the distance between the J/psi decay vertex and the event primary vertex. The differential cross section for production of nonprompt J/psi is compared to a FONLL calculation that does not include nuclear effects. Forward-backward production ratios are presented and compared to theoretical predictions. These results complement previously published results by covering a region of higher transverse momentum and more central rapidity. They thus constrain the kinematic dependence of nuclear modifications of charmonium and b-quark production in p + Pb collisions.

sted, utgiver, år, opplag, sider
2015. Vol. 92, nr 3, artikkel-id 034904
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Identifikatorer
URN: urn:nbn:se:kth:diva-176024DOI: 10.1103/PhysRevC.92.034904ISI: 000361118900010Scopus ID: 2-s2.0-84954359134OAI: oai:DiVA.org:kth-176024DiVA, id: diva2:865434
Forskningsfinansiär
Swedish Research CouncilKnut and Alice Wallenberg Foundation
Merknad

QC 20151028

Tilgjengelig fra: 2015-10-28 Laget: 2015-10-28 Sist oppdatert: 2019-12-04bibliografisk kontrollert

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Strandberg, Jonas

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Jovicevic, JelenaKuwertz, EmmaLund-Jensen, BengtMorley, AnthonyStrandberg, Jonas
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Physical Review C. Nuclear Physics

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