Forward-backward particle characteristics in the interactions of 3He and 4He with emulsion unclei at 3.7A GeV

Details Forward-backward particle characteristics in the interactions of 3He and 4He with emulsion unclei at 3.7A GeV Forward-backward particle characteristics in the interactions of 3He and 4He with emulsion unclei at 3.7A GeV

Aug 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001icrc....4.1366e&link_type=abstract

Proceedings of the 27th International Cosmic Ray Conference. 07-15 August, 2001. Hamburg, Germany. Under the auspices of the Int

Physics

Scientific paper

Experimental data on relativistic (shower) and fast (grey) hadrons emitted in the forward ( o 90<θ ) and backward ( o 90≥θ ) hemispheres in the interactions of 3.7A GeV helium isotopes (3 He and 4 He) with emulsion nuclei are presented and analyzed. The dependence of the probabilities of the interactions accompanied by backward relativistic ( ns b > 0 ) and fast ( Ng b > 0 ) hadrons on the projectile and target sizes are studied. The multiplicity distributions and mean values of both forward and backward shower and grey particles are investigated for the total samples as well as for events having ns b > 0, Ng b > 0 and different projectile spectator charges. The data showed that while the values of the average muliplicity of the produced forward shower particles are strongly dependent on the projectile mass number, Ap, those of the backward ones are nearly independent of Ap. Consequently, the present study yields quite interesting information regarding the mechanism of the backward particle production in heavy ion interactions.

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