CERN Accelerating science

Article
Report number arXiv:1509.07491 ; CERN-PH-EP-2015-262 ; CERN-PH-EP-2015-262
Title Measurement of electrons from heavy-flavour hadron decays in p–Pb collisions at sNN=5.02 TeV
Author(s) ALICE Collaboration  Mostra tots els 983 autors
Publication 2016-03-10
Imprint 24 Sep 2015
Number of pages 13
Note 24 pages, 5 captioned figures, 1 table, authors from page 19, published version, figures at http://aliceinfo.cern.ch/ArtSubmission/node/1888
In: Phys. Lett. B 754 (2016) 81-93
DOI 10.1016/j.physletb.2015.12.067
Subject category Nuclear Physics - Experiment
Accelerator/Facility, Experiment CERN LHC ; ALICE
Free keywords relativistic heavy ion physics ; heavy quark production ; experimental results
Abstract The production of electrons from heavy-flavour hadron decays was measured as a function of transverse momentum (pT) in minimum-bias p–Pb collisions at sNN=5.02 TeV with ALICE at the LHC for 0.5<pT<12 GeV/c in the rapidity range 1.06<ycms<0.14 in the centre-of-mass frame. To estimate the contribution of electrons from background sources an invariant mass approach was used. The nuclear modification factor RpPb was calculated by comparing the pT-differential invariant cross section in p–Pb collisions to a pp reference at the same centre-of-mass energy, which was obtained by interpolating measurements at s=2.76 TeV and s=7 TeV. The RpPb is consistent with unity within uncertainties of about 25%, which become larger below pT=1 GeV/c. The data are also reproduced by model calculations including cold nuclear matter effects.
Copyright/License publication: © 2016-2024 CERN (License: CC-BY-4.0), sponsored by SCOAP³
preprint: © 2015-2024 CERN (License: CC-BY-4.0)



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Email contact: enrico.scomparin@cern.ch


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