Using a hydrodynamic model, we predict the transverse momentum dependence o
f the spectra and the elliptic Row for different hadrons in Au+Au collision
s at roots = 130 A GeV. The dependence of the differential and p(t)-integra
ted elliptic flow on the hadron mass, equation of state and freeze-out temp
erature is studied both numerically and analytically. (C) 2001 Published by
Elsevier Science B.V.