Identifying Bottom Contribution in Non-photonic Electron Spectra and v2 from Au+Au Collisions at RHIC

We present a study on the spectra and elliptic flow v2 of electrons from heavy flavor (charm and bottom) decays with the relative contributions of charm and bottom hadrons given by the PYTHIA Monte Carlos simulations. We made a simultaneous fit to both measured non-photonic electron spectra and v2 distributions. The results suggest that the bottom contribution is not dominant for electron pT<5 GeV/c in the 200 GeV Au+Au collisions.