APS » PROLA » Phys. Rev. Lett. » Volume 78 » Issue 6

Phys. Rev. Lett. 78, 1022 - 1025 (1997)

Isospin Dependence of Collective Transverse Flow in Nuclear Collisions
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R. Pak1, W. Benenson1, O. Bjarki1, J. A. Brown1, S. A. Hannuschke1, R. A. Lacey2, Bao-An Li3, A. Nadasen4, E. Norbeck5, P. Pogodin5, D. E. Russ6, M. Steiner1, N. T. B. Stone1, A. M. Vander Molen1, G. D. Westfall1, L. B. Yang5, and S. J. Yennello7
1National Superconducting Cyclotron Laboratory and Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824-1321
2Department of Chemistry, State University of New York at Stony Brook, Stony Brook, New York 11794-3400
3Cyclotron Institute and Department of Physics, Texas A&M University, College Station, Texas 77843-3366
4Department of Natural Sciences, University of Michigan, Dearborn, Michigan 48128-1491
5Department of Physics and Astronomy, University of Iowa, Iowa City, Iowa 52242-1479
6Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742-2021
7Cyclotron Institute and Department of Chemistry, Texas A&M University, College Station, Texas 77843-3366

Received 3 June 1996

Collective transverse flow of nuclear matter was measured as a function of the ratio of neutrons to protons ( N/Z) of the interacting system for the first time. The collisions of three isotopically pure beams of A  =  58 nuclei with two A  =  58 targets were studied at 55 MeV/nucleon. The results for the flow variables demonstrate the sensitivity of transport models to elementary aspects of the nucleon-nucleon collisions.


©1997 The American Physical Society

URL: http://link.aps.org/abstract/PRL/v78/p1022
DOI: 10.1103/PhysRevLett.78.1022
PACS: 25.70.Pq, 25.75.Ld

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