Phys. Rev. C 57, R1032 - R1036 (1998)Splintering central collisions: Systematics of momentum and energy deposition for (17–115)A MeV 40Ar |
PRL Celebrates 50 Years
This Week's Milestone Letters are from 1981: |
E. Colin1,4, Rulin Sun1, N. N. Ajitanand1, John M. Alexander1, M. A. Barton6, P. A. DeYoung6, A. Elmaani1 *, C. J. Gelderloos7, E. E. Gualtieri5, D. Guinet4, S. Hannuschke5, J. A. Jasma6, L. Kowalski2, Roy A. Lacey1, J. Lauret1,3, E. Norbeck5, R. Pak5, G. F. Peaslee6, M. Stern4, N. T. B. Stone5, S. D. Sundbeck6, A. M. Vander Molen5, G. D. Westfall5, and J. Yee5
1Department of Chemistry, State University of New York at Stony Brook, Stony Brook, New York 11794
2Department of Physics and Geoscience, Montclair State College, Upper Montclair, New Jersey 07043
3Institut des Sciences Nucléaires de Grenoble, Institut National de Physique Nucléaire et de Physique des Particules-Centre Nationale de la Recherche Scientifique/Université Joseph Fourier, 53 Avenue des Martyrs, 38026, Grenoble Cedex, France
4Institut de Physique Nucléaire de Lyon, Institut National de Physique des Particules-Centre National de la Recherche Scientifique/Université Claude Bernard, 43, Boulevard du 11 Novembre 1918, 69622, Villeurbanne Cedex, France
5National Superconducting Laboratory, Michigan State University, E. Lansing, Michigan 48824
6Departments of Chemistry and Physics, Hope College, Holland, Michigan 49423
7Nuclear Physics Laboratory, University of Colorado, Boulder, Colorado 80309-0446
Received 6 August 1997
Measurements are reported for fragment masses and velocities from the reactions (17–115)A MeV 40Ar+Cu, Ag, and Au. Charged particle multiplicities were used to select the most violent reactions, and systematics are reported for the momentum and energy deposition. These reactions are fusionlike for ≲44A MeV 40Ar with a large fraction of momentum and energy deposition in the heavy nuclear system. However, for ≳44A MeV 40Ar, a majority of the projectile energy and momentum is carried away by a multibody spray of light ejectiles and only a minority is deposited in the heavy nucleus. Nevertheless heavy composite systems are formed with up to 9–12 MeV per source nucleon for 115A MeV 40Ar.
©1998 The American Physical Society
URL: http://link.aps.org/abstract/PRC/v57/pR1032
DOI: 10.1103/PhysRevC.57.R1032
PACS: 25.70.Jj, 25.70.Pq
* Present address: Battelle Pacific Northwest National Laboratory, National Security Division, Box 999, K6-48, Richland, WA 99352.
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