Transverse momentum distributions of neutral pions from central and peripheral16O+Au collisions at 200A·GeV

Authors :: Albrecht, R.
Awes, T. C.
Baktash, C.
Beckmann, P.
Berger, F.
Bock, R.
Claesson, G.
Clewing, G.
Dragon, L.
Ferguson, R. L.
Franz, A.
Garpman, S.
Glasow, R.
Gustafsson, H. Å.
Gutbrod, H. H.
Kampert, K. H.
Kolb, B. W.
Kristiansson, P.
Lee, I. Y.
Löhner, H.
Lund, I.
Obershain, F. E.
Oskarsson, A.
Otterlund, I.
Peitzmann, T.
Persson, S.
Plasil, F.
Poskanzer, A. M.
Purschke, M.
Ritter, H. G.
Santo, R.
Schmidt, H. R.
Siemiarczuk, T.
Sørensen, S. P.
Stenlund, E.
Young, G. R.
Source :: Zeitschrift für Physik C Particles and Fields; September 1990, Vol. 47 Issue: 3 p367-375, 9p
Publication Year :: 1990
Abstract: The production of neutral pions by the interaction of 200A·GeV p and<superscript>16</superscript>O projectiles with a Au target has been studied in the pseudorapidity range 1.5???2.1. Transverse momentum spectra have been measured between 0.4 GeV/c and 3.6 GeV/c and their dependence on the centrality of the collision has been investigated. The peripheral-collision spectra display a marked change of slope with a hard component starting at about 1.8 GeV/c, in contrast to central-collision data. The data are discussed in comparison to p+p and a+a data from the ISR.

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