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Precise determination of heavy flavor production cross-sections at LHCenergies will be of primary importance. The produced heavy quarks are expectedto be sensitive probes of parton energy loss in the medium formed in heavy-ioncollisions. Through the measurement of charm and bottom suppression in Pb + Pbwith respect to p + p, we hope to obtain insight into the color-charge andquark mass dependence of the energy loss mechanism. The ALICE experiment withits large acceptance is well suited to investigate the intermediate transversemomentum spectrum of heavy flavor mesons where these energy loss effects areexpected to be visible. ALICE has very good electron PID capabilities over alarge kinematic range using Time Projection Chamber (TPC), Transition RadiationDetector (TRD) and the Electromagnetic Calorimeter (EMCal). In addition theEMCal, to be installed for the Pb + Pb runs, is planned to allow efficienttriggering on high-pT jets. We first introduce the EMCal project and anoverview of detector specifications. Then we introduce a method developed toselect preferentially electrons from heavy flavor decays by reconstructingdisplaced secondary vertices. The strategy is to reconstruct displaced verticesfrom semi-leptonic heavy flavor meson decays using the excellent spatialresolution of the Inner Tracking System (ITS). We show preliminary results ofan efficiency study from charm vs. bottom vertices.

Reconstructing Bottom mesons using displaced vertices from semi-leptonic decays