Measurement of D$_{s}^{+}$ production and nuclear modification factor in Pb-Pb collisions at $\sqrt{{\mathrm{s}}_{\mathrm{NN}}}=$ 2.76 TeV
JHEP 1603 (2016) 082, 2016.
The collaboration

Abstract (data abstract)
CERN-LHC. The production of prompt D$_s^+$ mesons was measured for the first time in collisions of heavy nuclei with the ALICE detector at the LHC. The analysis was performed on a data sample of Pb-Pb collisions at a centre-of-mass energy per nucleon pair, $\sqrt{s_{\rm NN}}$, of 2.76 TeV in two different centrality classes, namely 0-10% and 20-50%. The nuclear modification factor $R_{\rm AA}$ was computed by comparing the $p_{\rm T}$-differential production yields in Pb-Pb collisions to those in proton-proton (pp) collisions at the same energy. The production ratios D$_s^+$/D$^0$ and D$_s^+$\D$^+$ were also measured in Pb-Pb collisions and compared to their values in proton-proton collisions.