Nuclear collective flow and charged-pion emission in Ne-nucleus collisions atE/A=800MeV
- 13 March 1989
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 62 (11) , 1251-1254
- https://doi.org/10.1103/physrevlett.62.1251
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.Keywords
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