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Measurement of electrons from heavy-flavour hadron decays as a function of multiplicity in p-Pb collisions at √sNN=5.02 TeV

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The multiplicity dependence of electron production from heavy- avour hadrondecays as a function of transverse momentum was measured in p-Pb collisions atpsNN=5:02 TeV using the ALICE detector at the LHC. The measurement was performed in the centre-of-mass rapidity interval −1.07 < ycms< 0.14 a...

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Main Authors: Acharya, Shreyasi (Author) , Angelov, Venelin (Author) , Arslandok, Mesut (Author) , Danisch, Meike (Author) , Deisting, Alexander (Author) , Feuillard, Victor (Author) , Glässel, Peter (Author) , Kim, Jiyoung (Author) , Kim, Minjung (Author) , Klewin, Sebastian (Author) , Köhler, Markus Konrad (Author) , Leardini, Lucia (Author) , Martin, Nicole Alice (Author) , Ohlson, Alice (Author) , Pachmayer, Yvonne C. (Author) , Reygers, Klaus (Author) , Schicker, Rainer (Author) , Schmah, Alexander (Author) , Schmidt, Marten Ole (Author) , Stachel, Johanna (Author) , Weiser, Dennis (Author) , Windelband, Bernd (Author) , Yüncü, Alperen (Author)
Corporate Author: ALICE (Author)
Format: Article (Journal)
Language:English
Published: 12 February 2020
In: Journal of high energy physics
Year: 2020, Issue: 2
ISSN:1029-8479
DOI:10.1007/JHEP02(2020)077
Online Access:Verlag, kostenfrei, Volltext: https://dx.doi.org/10.1007/JHEP02(2020)077
Verlag, kostenfrei, Volltext: https://doi.org/10.1007/JHEP02(2020)077
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Author Notes:S. Acharya et al. (ALICE Collaboration)
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Summary:The multiplicity dependence of electron production from heavy- avour hadrondecays as a function of transverse momentum was measured in p-Pb collisions atpsNN=5:02 TeV using the ALICE detector at the LHC. The measurement was performed in the centre-of-mass rapidity interval −1.07 < ycms< 0.14 and transverse momentum interval 2 < pT< 16 GeV/c. The multiplicity dependence of the production of electrons from heavy-flavour hadron decays was studied by comparing the pT spectra measured for different multiplicity classes with those measured in pp collisions (QpPb) and in peripheral p-Pb collisions (Qcp). The QpPb results obtained are consistent with unity within uncertainties in the measured pT interval and event classes. This indicates that heavy-flavour decay electron production is consistent with binary scaling and independent of the geometry of the collision system. Additionally, the results suggest that cold nuclear matter effects are negligible within uncertainties, in the production of heavy-flavour decay electrons at midrapidity in p-Pb collisions.
Item Description:Im Titel steht der Ausdruck "sNN" unter dem Wurzelsymbol, "NN" ist dabei tiefgestellt
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Physical Description:Online Resource
ISSN:1029-8479
DOI:10.1007/JHEP02(2020)077

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