Centrality dependence of charged hadron transverse momentum spectra in Au + Au collisions from square root of s(NN)=62.4 to 200 GeV

We have measured transverse momentum distributions of charged hadrons produced in Au + Au collisions at square root s(NN) = 62.4 GeV. The spectra are presented for transverse momenta 0.2

Energy dependence of elliptic flow over a large pseudorapidity range in Au + Au collisions at the BNL relativistic heavy ion collider

This Letter describes the measurement of the energy dependence of elliptic flow for charged particles in Au+Au collisions using the PHOBOS detector at the Relativistic Heavy Ion Collider. Data taken at collision energies of root s(NN) = 19.6, 62.4, 130, and 200 GeV are shown over a wide range in pseudorapidity. These results, when plotted as a function of eta' = vertical bar eta vertical bar - y(beam), scale with approximate linearity throughout eta('), implying no sharp changes in the dynamics of particle production as a function of pseudorapidity or increasing beam energy