Charged Pion Production in 2 to 8 AGeV Central Au+Au Collisions

Abstract

Momentum spectra of charged pions over nearly full rapidity coverage from target to beam rapidity have been measured in the 0-5% most central Au+Au collisions in the beam energy range from 2 to 8 AGeV by the E895 Experiment. Using a thermal parameterization to fit the transverse mass spectra, rapidity density distributions are extracted. The observed spectra are compared with predictions from the RQMD v2.3 cascade model and also to a thermal model including longitudinal flow. The total 4$\pi$ yields of the charged pions are used to infer an initial state entropy produced in the collisions.

13 pgs, 19 figs, accepted by Phys. Rev. C. Data tables available at http://nuclear.ucdavis.edu/~e895/published_spectra.html

References in corpus (2)

• Energy Dependence of Pion and Kaon Production in Central Pb+Pb Collisions
• Longitudinal Flow of Protons from 2-8 AGeV Central Au+Au Collisions

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