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Your search keyword '"Alard JP"' showing total 2 results
Start Over Author "Alard JP" Topic energy transfer
2 results on '"Alard JP"'

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

Author

Gosset J, Valette O, Alard JP, Augerat J, Babinet R, Bastid N, Brochard F, De Marco N, Dupieux P, Fodor Z, Fraysse L, Gorodetzky P, Lemaire MC, L'Hôte D, Lucas B, Marroncle J, Montarou G, Parizet MJ, Poitou J, Racca C, Rahmani A, Schimmerling W, and Terrien Y

Subjects
Elementary Particles, Lead, Nuclear Physics, Energy Transfer, Mesons, Models, Theoretical, Neon
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.

Published
1989
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2. Proton-proton correlations at small relative momentum in neon-nucleus collisions at E/A=400 and 800 MeV.

Author

Dupieux P, Alard JP, Augerat J, Babinet R, Bastid N, Brochard F, Charmensat P, De Marco N, Fanet H, Fodor Z, Fraysse L, Girard J, Gorodetzky P, Gosset J, Laspalles C, Lemaire MC, L'Hôte D, Lucas B, Marroncle J, Montarou G, Parizet MJ, Poitou J, Qassoud D, Racca C, and Schimmerling W

Subjects
Carbon, Elementary Particles, Lead, Models, Theoretical, Niobium, Particle Accelerators, Sodium Fluoride, Energy Transfer, Neon, Nuclear Physics, Protons
Abstract

Proton-proton small angle correlations have been measured in neon-nucleus collisions, using the 4 pi detector Diogene, at 400 and 800 MeV per nucleon incident energies. Values of the size of the emitting region are obtained by comparison with the Koonin formula, taking into account the biases of the apparatus. The dependence of the density on target mass and incident energy is also analysed.

Published
1988
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