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Scaling of Particle and Transverse Energy Production in 208Pb+208Pb collisions at 158 A GeV

WA98 Collaboration·M. M. Aggarwal
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Abstract

Transverse energy, charged particle pseudorapidity distributions and photon transverse momentum spectra have been studied as a function of the number of participants (N_{part}) and the number of binary nucleon-nucleon collisions (N_{coll}) in 158 A GeV Pb+Pb collisions over a wide impact parameter range. A scaling of the transverse energy pseudorapidity density at midrapidity as N_{part}^{1.08 \pm 0.06} and N_{coll}^{0.83 \pm 0.05} is observed. For the charged particle pseudorapidity density at midrapidity we find a scaling as N_{part}^{1.07 \pm 0.04} and N_{coll}^{0.82 \pm 0.03}. This faster than linear scaling with N_{part} indicates a violation of the naive Wounded Nucleon Model.

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WA98 Collaboration, M. M. Aggarwal. 2000-12-11. Scaling of Particle and Transverse Energy Production in 208Pb+208Pb collisions at 158 A GeV. https://doi.org/10.1007/s100520100578

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