Abstract
We present first measurements of the pseudorapidity and azimuth (η, φ) binsize
dependence of event-wise mean transverse-momentum pt fluctuations
for Au–Au collisions at
VsNN = 200 GeV. We invert that dependence to
obtain pt autocorrelations on differences (η , φ ) interpreted to represent
velocity/temperature distributions on (η, φ). The general form of the
autocorrelations suggests that the basic correlation mechanism is parton
fragmentation. The autocorrelations vary rapidly with collision centrality,
which suggests that fragmentation is strongly modified by a dissipative
| Original language | Undefined/Unknown |
|---|---|
| Pages (from-to) | L37-L48 |
| Number of pages | 12 |
| Journal | Journal of physics. G. Nuclear and particle physics |
| Volume | 32 |
| Publication status | Published - 2006 |