Transverse Momentum Dependence of Bose-Einstein Correlations in 200AGeV/cS+ACollisions

The NA35 experiment has collected a high statistics set of momentum analyzed negative hadrons near and forward of midrapidity for central collisions of $200A\mathrm{GeV}/c$ ${}_{}{}^{32}{}_{}{}^{}S+\mathrm{S}$, Cu, Ag, and Au. Using momentum space correlations to study the size of the source of particle production, the transverse source radii are found to decrease by $\sim$40% at midrapidity and $\sim$20% at forward rapidity while the longitudinal radius $R_L$ is found to decrease by $\sim$50% as $p_T$ increases over the interval $50<\mathrm{}{p}_T<600\mathrm{MeV}/c$. Calculations using a microscopic phase space approach (relativistic quantum molecular dynamics) reproduce the observed trends of the data.