Nuclear collective flow and charged-pion emission in Ne-nucleus collisions at E/A = 800 MeV

Triple-differential cross sections of charged pions were measured for collisions of Ne projectiles at E/A = 800 MeV with NaF, Nb, and Pb targets. The reaction plane was estimated event by event from the light-baryon momentum distribution. For heavy targets, preferential emission of charged pions awa...

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Bibliographic Details
Published in:Physical review letters 1989-03, Vol.62 (11)
Main Authors: Gosset, J., Valette, O., Alard, J. P., Augerat, J., Babinet, R., Bastid, N., Brochard, F., De Marco, N., Dupieux, P., Fodor, Z., Fraysse, L., Gorodetzky, P., Lemaire, M. C., L'Hote, D., Lucas, B., Marroncle, J., Montarou, G., Parizet, M. J., Poitou, J., Racca, C., Rahmani, A., Schimmerling, W., Terrien, Y.
Format: Article
Language:English
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Life Sciences (General)
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Summary:Triple-differential cross sections of charged pions were measured for collisions of Ne projectiles at E/A = 800 MeV with NaF, Nb, and Pb targets. The reaction plane was estimated event by event from the light-baryon momentum distribution. For heavy targets, preferential emission of charged pions away from the interaction zone towards the projectile side was observed in the transverse direction. Such a preferential emission, which is not predicted by cascade calculations, may be attributed to a stronger pion absorption by the heavier spectator remnant.
ISSN:0031-9007