Naslov
Centrality dependence of high-pT D meson suppression in Pb-Pb collisions at √sNN=2.76 TeV

Autori
Adam, J. ; Antičić, Tome ; Erhardt, Filip ; Gotovac, Sven ; Mudnić, Eugen ; Planinić, Mirko ; Poljak, Nikola ; Simatović, Goran ; Utrobičić, Antonija ; Vicković, Linda ; Zyzak, M.

Kolaboracija
ALICE Collaboration

Izvornik
The Journal of high energy physics (1126-6708) 205 (2015), 11; 205, 24

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
charm physics ; heavy ions ; heavy-ion collision ; high-p(T) ; D meson ; suppression ; Pb-Pb ; 2.76 TeV

Sažetak
The nuclear modification factor, R AA, of the prompt charmed mesons D0, D+ and D∗+, and their antiparticles, was measured with the ALICE detector in Pb-Pb collisions at a centre-of-mass energy sNN−−−−√=2.76 TeV in two transverse momentum intervals, 5 < p T < 8 GeV/c and 8 < p T < 16 GeV/c, and in six collision centrality classes. The R AA shows a maximum suppression of a factor of 5-6 in the 10% most central collisions. The suppression and its centrality dependence are compatible within uncertainties with those of charged pions. A comparison with the R AA of non-prompt J/ψ from B meson decays, measured by the CMS Collaboration, hints at a larger suppression of D mesons in the most central collisions.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

Napomena
ALICE Collaboration

POVEZANOST RADA