Production of pions, kaons and protons at high pT in sqrt{s_NN}=2.76 TeV   Pb-Pb collisions
  In this work we report on the production of charged pions, kaons, and (anti) protons in pp and Pb-Pb collisions at sqrt{s_NN}= 2.76 TeV for 3 < pT < 20 GeV/c. The evolution of the nuclear modification factor, RAA, with collision centrality and transverse momentum is discussed. 
Antonio Ortiz Velasquez (for the ALICE Collaboration)
hep-ex nucl-ex