Measurement of electrons from heavy-flavour hadron decays in p-Pb collisions at root s(NN)=5.02 TeV

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F16%3A00458658" target="_blank" >RIV/68378271:_____/16:00458658 - isvavai.cz</a>
Alternative codes found
RIV/61389005:_____/16:00458658 RIV/68407700:21340/16:00301035
Result on the web
<a href="http://dx.doi.org/10.1016/j.physletb.2015.12.067" target="_blank" >http://dx.doi.org/10.1016/j.physletb.2015.12.067</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.physletb.2015.12.067" target="_blank" >10.1016/j.physletb.2015.12.067</a>

Result language
angličtina
Original language name
Measurement of electrons from heavy-flavour hadron decays in p-Pb collisions at root s(NN)=5.02 TeV
Original language description
The production of electrons from heavy-flavour hadron decays was measured as a function of transverse momentum (p(T)) in minimum-bias p-Pb collisions at root s(NN) = 5.02 TeV using the ALICE detector at the LHC. The measurement covers the p(T) interval 0.5 < p(T) < 12 GeV/c and the rapidity range -1.065 < y(cms) < 0.135 in the centre-of-mass reference frame. The contribution of electrons from background sources was subtracted using an invariant mass approach. The nuclear modification factor R-pPb was calculated by comparing the p(T)-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 root s = 2.76 TeV and root s= 7 TeV. The R-pPb is consistent with unity within uncertainties of about 25%, which become larger for p(T) below 1 GeV/c. The measurement shows that heavy-flavour production is consistent with binary scaling, so that a suppression in the high-p(T) yield in Pb-Pb collisions has to be attributed to effects induced by the hot medium produced in the final state. The data in p-Pb collisions are described by recent model calculations that include cold nuclear matter effects.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BF - Elementary particle theory and high energy physics
OECD FORD branch
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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