Low-Q2 Partons in p-p and Au-Au Collisions

We describe correlations of low-Q2 parton fragments on transverse rapidity yt and angles (η,φ) from p-p and Au-Au collisions at √(s) = 130 and 200 AGeV. Evolution of correlations on yt from p-p to more-central Au-Au collisions shows evidence for parton dissipation. Cuts on yt isolate angular correlations on (η,φ) for low-Q2 partons which reveal a large asymmetry about the jet thrust axis in p-p collisions favoring the azimuth direction. Evolution of angular correlations with increasing Au-Au centrality reveals a rotation of the asymmetry to favor pseudorapidity. Angular correlations of transverse momentum pt in Au-Au collisions access temperature/velocity structure resulting from low-Q2 parton scattering pt autocorrelations on (η,φ), obtained from the scale dependence of fluctuations, reveal a complex parton dissipation process in heavy ion collisions which includes the possibility of collective bulk-medium recoil in response to parton stopping