Sources and Emission Time Scales in E/A=50 MeV 129Xe + natCu Reactions

D. R. Bowman, National Superconducting Cyclotron Laboratory and Department of Physics Astronomy Michigan State University
Graham F. Peaslee, National Superconducting Cyclotron Laboratory and Department of Physics Astronomy Michigan State UniversityFollow
N. Carlin, National Superconducting Cyclotron Laboratory and Department of Physics Astronomy Michigan State University
R. T. de Souza, National Superconducting Cyclotron Laboratory and Department of Physics Astronomy Michigan State University
C. K. Gelbke, National Superconducting Cyclotron Laboratory and Department of Physics Astronomy Michigan State University
W. G. Gong, National Superconducting Cyclotron Laboratory and Department of Physics Astronomy Michigan State University
Y. D. Kim, National Superconducting Cyclotron Laboratory and Department of Physics Astronomy Michigan State University
M. A. Lisa, National Superconducting Cyclotron Laboratory and Department of Physics Astronomy Michigan State University
W. G. Lynch, National Superconducting Cyclotron Laboratory and Department of Physics Astronomy Michigan State University
L. Phair, National Superconducting Cyclotron Laboratory and Department of Physics Astronomy Michigan State University
M. B. Tsang, National Superconducting Cyclotron Laboratory and Department of Physics Astronomy Michigan State University
C. Williams, National Superconducting Cyclotron Laboratory and Department of Physics Astronomy Michigan State University
N. Colonna, Nuclear Science Division and Accelerator and Fusion Research Division, Lawrence Berkeley Laboratory
K. Hanold, Nuclear Science Division and Accelerator and Fusion Research Division, Lawrence Berkeley Laboratory
M. A. McMahan, Nuclear Science Division and Accelerator and Fusion Research Division, Lawrence Berkeley Laboratory
G. J. Wozniak, Nuclear Science Division and Accelerator and Fusion Research Division, Lawrence Berkeley Laboratory
L. G. Moretto, Nuclear Science Division and Accelerator and Fusion Research Division, Lawrence Berkeley Laboratory

Document Type

Article

Publication Date

6-7-1993

Publication Source

Physical Review Letters

Volume Number

70

Issue Number

23

First Page

3534

Last Page

3537

Publisher

American Physical Society

Abstract

Velocity distributions and fragment-fragment correlation functions have been measured as a function of charged particle multiplicity for Xe129+natCu collisions at E/A=50 MeV. With increasing multiplicity, the velocity distributions evolve from a pattern exhibiting targetlike and projectilelike sources to an anisotropic distribution centered near the projectile-target center-of-mass velocity. Emission times extracted from the correlation functions are consistent with the decay of a projectilelike source in low multiplicity collisions, but the time scale for fragment emission in the high multiplicity collisions is too short for a separation of sources to occur.

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