Transverse momentum dependence of D-meson production in Pb-Pb collisions at root S-NN=2.76 TeV

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F16%3A00459123" target="_blank" >RIV/68378271:_____/16:00459123 - isvavai.cz</a>
Alternative codes found
RIV/61389005:_____/16:00459123 RIV/68407700:21340/16:00301036
Result on the web
<a href="http://dx.doi.org/10.1007/JHEP03(2016)081" target="_blank" >http://dx.doi.org/10.1007/JHEP03(2016)081</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/JHEP03(2016)081" target="_blank" >10.1007/JHEP03(2016)081</a>

Result language
angličtina
Original language name
Transverse momentum dependence of D-meson production in Pb-Pb collisions at root S-NN=2.76 TeV
Original language description
The production of prompt charmed mesons D-0, D+ and D*(+), and their antiparticles, was measured with the ALICE detector in Pb-Pb collisions at the centre-of-mass energy per nucleon pair, root s(NN), of 2.76 TeV. The production yields for rapidity vertical bar y vertical bar < 0.5 are presented as a function of transverse momentum, p(T), in the interval 1-36 GeV/c for the centrality class 0-10% and in the interval 1-16 GeV/c for the centrality class 30-50%. The nuclear modification factor R-AA was computed using a proton-proton reference at root s = 2.76 TeV, based on measurements at root s = 7 TeV and on theoretical calculations. A maximum suppression by a factor of 5-6 with respect to binary-scaled pp yields is observed for the most central collisions at p(T) of about 10 GeV/c. A suppression by a factor of about 2-3 persists at the highest p(T) covered by the measurements. At low p(T) (1-3 GeV/c), the R-AA has large uncertainties that span the range 0.35 (factor of about 3 suppression) to 1 (no suppression). In all p(T) intervals, the R-AA is larger in the 30-50% centrality class compared to central collisions. The D-meson R-AA is also compared with that of charged pions and, at large p(T), charged hadrons, and with model calculations.
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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