High pT inclusive charged hadron spectra from Au+Au collisions at image GeV Original Research Article

The STAR Collaboration presents new measurements of inclusive charged hadron distributions for pT < 12 GeV/c from Au+Au collisions at View the MathML source. Charged hadron suppression at high pT is similar in shape and magnitude at all centralities to that observed previously at View the MathML source for pT < 6 GeV/c. The ratio of spectra from central and peripheral Au+Au collisions shows that hadron suppression is approximately constant within 6 < pT < 12 GeV/c. The ratios of charged hadron spectra at the two beam energies show a 15–20% increase in yield at low pT. At high pT, the ratios show a larger increase that agrees well with pQCD calculations of the View the MathML source dependence of particle production in Au+Au collisions.