Azimuthal Correlations between Non-Photonic Electrons and Charged   Hadrons in p+p Collisions from STAR
  We present the preliminary measurement of azimuthal correlations between non-photonic electrons and charged hadrons in p+p collisions at $\sqrt{s_{NN}} = 200$ GeV from STAR. The results are compared to PYTHIA simulations to estimate the relative contributions of $D$ and $B$ meson semi-leptonic decays to the non-photonic electrons. 
Xiaoyan Lin (for the STAR Collaboration)