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The differential production cross section of the phi(1020) meson in root s=7 TeV pp collisions measured with the ATLAS detector
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.
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Number of Authors: 2906
2014 (English)In: European Physical Journal C, ISSN 1434-6044, E-ISSN 1434-6052, Vol. 74, no 7, 2895- p.Article in journal (Refereed) Published
Abstract [en]

A measurement is presented of the phi x BR(phi -> K+ K-) production cross section at root s = 7 TeV using pp collision data corresponding to an integrated luminosity of 383 mu b(-1), collected with the ATLAS experiment at the LHC. Selection of phi(1020) mesons is based on the identification of charged kaons by their energy loss in the pixel detector. The differential cross section is measured as a function of the transverse momentum, pT, phi, and rapidity, y(phi), of the phi(1020) meson in the fiducial region 500 < pT,phi < 1200MeV, vertical bar y phi| < 0.8, kaon p(T), (K) > 230 MeV and kaon momentum p(K) < 800 MeV. The integrated phi(1020)-meson production cross section in this fiducial range is measured to be sigma(phi) x BR(phi -> K+ K-) = 570 +/- 8 (stat) +/- 66 (syst) +/- 20 (lumi) mu b.

Place, publisher, year, edition, pages
2014. Vol. 74, no 7, 2895- p.
Keyword [en]
Fragmentation
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-148801DOI: 10.1140/epjc/s10052-014-2895-2ISI: 000338719300001Scopus ID: 2-s2.0-84926391849OAI: oai:DiVA.org:kth-148801DiVA: diva2:737290
Funder
EU, European Research CouncilSwedish Research Council
Note

QC 20140812

Available from: 2014-08-12 Created: 2014-08-12 Last updated: 2017-12-05Bibliographically approved

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Strandberg, Jonas

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Jovicevic, JelenaKuwertz, EmmaLund-Jensen, BengtStrandberg, Jonas
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