D+s production at central rapidity in Pb Pb collisions at sqrt{s_NN} = 2.76 TeV with the ALICE detector

We present the measurement of the D+s production in pp collisions at sqrt{s} = 7 TeV and in Pb Pb collisions at sqrt{s_NN} =2.76 TeV performed with the ALICE detector at central rapidity through the reconstruction of the hadronic decay channel D+s-> K+K-pi+. The preliminary results of the D+s nuclear modification factor will be presented.We present measurements of the D_s^+ production in pp collisions at s=7 TeV and in Pb-Pb collisions at $\sqrt{s_{NN}}$=2.76 TeV performed with the ALICE detector at central rapidity through the reconstruction of the hadronic decay channel D_s^+->@f@p^+->K^+K^-@p^+. Preliminary results of the D_s^+ nuclear modification factor will be presented.We present measurements of the Ds+ production in pp collisions at s=7 TeV and in Pb–Pb collisions at sNN=2.76 TeV performed with the ALICE detector at central rapidity through the reconstruction of the hadronic decay channel Ds+→ϕπ+→K+K−π+ . Preliminary results of the Ds+ nuclear modification factor will be presented.We present the measurement of the D+s production in pp collisions at sqrt{s} = 7 TeV and in Pb Pb collisions at sqrt{s_NN} =2.76 TeV performed with the ALICE detector at central rapidity through the reconstruction of the hadronic decay channel D+s-> K+K-pi+. The preliminary results of the D+s nuclear modification factor will be presented