The Suppression of High PT Non-Photonic Electrons in AU+AU Collisions at √ {SNN} = 200 GEV at Rhic

Details The Suppression of High PT Non-Photonic Electrons in AU+AU Collisions at √ {SNN} = 200 GEV at Rhic The Suppression of High PT Non-Photonic Electrons in AU+AU Collisions at √ {SNN} = 200 GEV at Rhic

Dec 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006fuin.conf..131b&link_type=abstract

FUNDAMENTAL INTERACTIONS. Proceedings of the 21st Lake Louise Winter Institute. Held 17-23 February 2006 in Lake Louise, Alberta

Physics

Scientific paper

In these proceedings, the preliminary non-photonic electron spectra from p + p, d + Au and Au + Au collisions at √ {sNN} = 200 GeV at mid-rapidity are presented. The momentum range of reconstructed non-photonic electrons is 1.5 < pT < 10 GeV/c. The dominant contribution to the non-photonic electron spectrum is the semi-leptonic decay of D and B mesons. The electron nuclear modification factor (RAA) shows a large suppression in central Au+Au collisions, indicating an unexpectedly large energy loss for heavy quarks in the hot and dense matter created at RHIC. Theoretical models tend to overpredict the data if the contributions from both charm and beauty decays are taken into account.

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