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Measurements of the Nuclear Modification Factor for Jets in Pb plus Pb Collisions at root SNN=2.76 TeV with the ATLAS Detector
KTH, School of Engineering Sciences (SCI), Physics.
KTH, School of Engineering Sciences (SCI), Physics.
KTH, School of Engineering Sciences (SCI), Physics.
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Number of Authors: 2890
2015 (English)In: Physical Review Letters, ISSN 0031-9007, E-ISSN 1079-7114, Vol. 114, no 7, 072302Article in journal (Refereed) Published
Abstract [en]

Measurements of inclusive jet production are performed in pp and Pb + Pb collisions at root SNN = 2.76 TeV with the ATLAS detector at the LHC, corresponding to integrated luminosities of 4.0 and 0.14 nb(-1), respectively. The jets are identified with the anti-k(t) algorithm with R = 0.4, and the spectra are measured over the kinematic range of jet transverse momentum 32 < pT < 500 GeV and absolute rapidity |y| < 2.1 and as a function of collision centrality. The nuclear modification factor R-AA is evaluated, and jets are found to be suppressed by approximately a factor of 2 in central collisions compared to pp collisions. The RAA shows a slight increase with pT and no significant variation with rapidity.

Place, publisher, year, edition, pages
2015. Vol. 114, no 7, 072302
National Category
Physical Sciences
URN: urn:nbn:se:kth:diva-163407DOI: 10.1103/PhysRevLett.114.072302ISI: 000349788000008PubMedID: 25763955ScopusID: 2-s2.0-84923291878OAI: diva2:800073
Knut and Alice Wallenberg FoundationSwedish Research Council

QC 20150401.

Author count: 2890

Available from: 2015-04-01 Created: 2015-04-01 Last updated: 2015-04-01Bibliographically approved

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Jovicevic, JelenaKuwertz, EmmaLund-Jensen, BengtMorley, Anthony K.Strandberg, Jonas
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