Transverse-momentum dependent modification of dynamic texture in central Au+Au collisions at sqrt(SNN)=200 GeV
Abstract
Correlations in the hadron distributions produced in relativistic Au+Au collisions are studied in the discrete wavelet expansion method. The analysis is performed in the space of pseudorapidity (|eta| < 1) and azimuth (full 2 pi) in bins of transverse momentum (pt) from 0.14 < pt < 2.1 GeV/c. In peripheral Au+Au collisions a correlation structure ascribed to mini-jet fragmentation is observed. It evolves with collision centrality and pt in a way not seen before which suggests strong dissipation of minijet fragmentation in the longitudinally-expanding medium.
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