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Nuclear collective flow and charged-pion emission in Ne-nucleus collisions at E/A = 800 MeV |
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| 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'Hôte D Lucas B Marroncle J Montarou G Parizet M J Poitou J Racca C Rahmani A Schimmerling W Terrien Y |
| Affiliation: | Département de Physique Nucléaire, Centre d'Etudes Nucléaires de Saclay, Gif-sur-Yvette, France. |
| Abstract: | 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. |
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