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Phys. Rev. C 55, R990 - R994 (1997)

Azimuthal 2α correlations and projectile-residue distributions selected by neutron and charged-particle multiplicity measurements

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G. J. Kunde, S. Gaff, C. K. Gelbke, T. Glasmacher, M. J. Huang, R. Lemmon, W. G. Lynch, L. Manduci, L. Martin, R. Popescu, and M. B. Tsang
Department of Physics and Astronomy and National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824

J. Dempsey, R. J. Charity, and L. G. Sobotka
Department of Chemistry, Washington University, St. Louis, Missouri 63130

D. K. Agnihotri, B. Djerroud, W. U. Schröder, W. Skulski, J. Tõke, and K. Wyrozebski
Department of Chemistry and Nuclear Structure Research Laboratory, University of Rochester, Rochester, New York 14627

D. Ruess
Department of Chemistry, University of Maryland, College Park, Maryland 20742

Rapid Communication Received 23 April 1996

The resolution of reaction filters for intermediate-energy heavy-ion collisions based upon charged-particle and neutron multiplicity measurements with 4π coverage is compared for 112Sn+112Sn and 124Sn+124Sn collisions at E/A=40 MeV. The quality of event characterization is inferred from the azimuthal correlations of α particles emitted at intermediate rapidity and from the Z distributions of projectilelike fragments emitted at forward angles. For central and midimpact parameter collisions, the associated charged-particle multiplicity appears to provide better impact-parameter selection than the associated neutron multiplicity.


©1997 The American Physical Society

URL: http://link.aps.org/doi/10.1103/PhysRevC.55.R990
DOI: 10.1103/PhysRevC.55.R990
PACS: 25.70.Pq, 25.70.Gh

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