Physics – Nuclear Physics – Nuclear Theory
Scientific paper
1999-01-12
Phys.Lett. B450 (1999) 7-14
Physics
Nuclear Physics
Nuclear Theory
13 pages including 4 figures, accepted for publication in Phys. Lett. B
Scientific paper
10.1016/S0370-2693(99)00121-5
The scaling of pion multiplicities with system size in proton-nucleus and nucleus-nucleus reactions at 200 A GeV is investigated. A nuclear geometry calculation of incoherent multiple scattering including effects of deceleration of the participating particles is presented. Pion multiplicities at high transverse momenta agree relatively well with an overall scaling with the number of binary collisions. The deviations from this gross scaling for p+A and S+Au reactions at 200AGeV are compared to model predictions and the implications are discussed. Within this picture no universal scaling law for high pT particle production is obtained. In addition to the conceptual problems of such an incoherent model, it is shown that the implied kinematic relation between a possible pT-broadening and deceleration leads to contradictions. The scaling of pion production at intermediate pT with system size does not indicate a multiple scattering enhancement.
No associations
LandOfFree
Scaling Properties of Pion Production does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Scaling Properties of Pion Production, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Scaling Properties of Pion Production will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-341210