Heavy-Flavor: Open charm from e- data [PRL 88, 192303 (2002), QM 2002]

• Background subtracted single electron spectra (Run-1 & Run-2):

• Electron spectrum/cross-section consistent with pp (PYTHIA 6.152) binary-scaled charm production (i.e. no nuclear or medium effects) for all centralities.

• Factor of ~4-5 suppression in high pT 0 (relative to binary scaling) not observed. Less energy loss of heavy quarks in medium (“dead-cone” effect) ?

Notes: