Charged pion production in2Ato8AGeVcentralAu+AuCollisions
Physical Review C2003Vol. 68(5)
Citations Over TimeTop 10% of 2003 papers
J. L. Klay, N. N. Ajitanand, J. M. Alexander, Michael Anderson, David Best, F.P. Brady, T. Case, W. Caskey, D. Cebra, J. L. Chance, P. Chung, B. Cole, K.M. Crowe, Arkaprava Das, J. E. Draper, M. L. Gilkes, S. Gushue, M. Heffner, A. Hirsch, E. Hjort, L. Huo, M. Justice, M. Kaplan, D. Keane, J. C. Kintner, D. Krofcheck, R. Lacey, J. Lauret, Choi Look Law, M. A. Lisa, H. Liu, Y. M. Liu, Robert L. McGrath, Z. Milosevich, G. Odyniec, D. Olson, S. Panitkin, C. Pinkenburg, N. Porile, G. Rai, H. G. Ritter, J. L. Romero, R. P. Scharenberg, B. Srivastava, N. T. B. Stone, T. J. M. Symons, S. Wang, R. Wells, J. Whitfield, T. Wienold, R. Witt, L. Wood, W. N. Zhang
Abstract
Momentum spectra of charged pions over nearly full rapidity coverage from target to beam rapidity have been extracted from $0\ensuremath{-}5%$ most central $\text{Au}+\text{Au}$ collisions in the beam energy range from $2A$ to $8A\phantom{\rule{0.3em}{0ex}}\text{GeV}$ by the E895 experiment. Using a thermal parametrization to fit the transverse mass spectra, rapidity density distributions are extracted. The observed spectra are compared with predictions from the RQMD version 2.3 cascade model and also to a thermal model including longitudinal flow. The total $4\ensuremath{\pi}$ yields of the charged pions are used to infer an initial-state entropy produced in the collisions.
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