Physics – Nuclear Physics – Nuclear Experiment
Scientific paper
2002-09-25
Nucl.Phys. A715 (2003) 729-732
Physics
Nuclear Physics
Nuclear Experiment
4 pages, 2 figures, Talk presented at Quark Matter 2002, Nantes, France, July 18-24, 2002. To appear in the proceedings (Nucl.
Scientific paper
10.1016/S0375-9474(02)01475-6
Recent results of the WA98 experiment with p and Pb induced reactions at 158 AGeV are presented. Azimuthal gamma-gamma correlations at high pT were studied in search for a signal of jet-like structures. A clear indication for back-to-back correlations can be seen in p+A with a strong dependence on the pT of the photons and the size of the system. In Pb+Pb collisions in plane elliptic flow has been observed. Results on transverse mass spectra of neutral pions measured at central rapidity are presented for impact parameter selected Pb+Pb collisions. In going from peripheral to medium central collisions there is a nuclear enhancement increasing with transverse mass similar to the Cronin effect, while for very central collisions this enhancement appears to be weaker than expected.
Bathe Stefan
for the WA98 Collaboration
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