Heavy Quark Measurements by Single Electrons in the PHENIX Experiment

Abstract

Transverse momentum ($p_{\mathrm{T}}$) distribution of electrons for $0.3<p_{\mathrm{T}}<9.0$ GeV/$c$ have been measured in midrapidity ($|\eta |<0.35$) in Au + Au collisions and $p$ + $p$ collisions at $\sqrt{s_{NN}}=200$ GeV by the RHIC-PHENIX experiment. Two methods for background subtraction were applied to determine the electron yield from open charm and bottom decays. The nuclear modification factor was calculated, and significant suppression at high-$p_{\mathrm{T}}$ was observed in Au + Au collisions, indicating substantial energy loss of heavy quarks in the dense medium.

4 pages, Proceedings for Quark Matter 2006

References in corpus (5)

• Transverse momentum and collision energy dependence of high $p_T$ hadron suppression in Au+Au collisions at ultrarelativistic energies
• Suppressed pi^0 Production at Large Transverse Momentum in Central Au+Au Collisions at sqrt(s_NN) = 200 GeV
• QCD Predictions for Charm and Bottom Production at RHIC
• Measurement of high-p_T Single Electrons from Heavy-Flavor Decays in p+p Collisions at sqrt(s) = 200 GeV
• Common Suppression Pattern of eta and pi^0 Mesons at High Transverse Momentum in Au+Au Collisions at sqrt(s_NN) = 200 GeV

Cited by in corpus (1)

• Parton energy loss at strong coupling and the universal bound