Anomalous radial expansion in central heavy-ion reactions

K. Morawetz, M. Płoszajczak, and V. D. Toneev
Phys. Rev. C 62, 064602 – Published 25 October 2000
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Abstract

The expansion velocity profile in central heavy-ion reactions in the Fermi energy domain is examined. The radial expansion is non-Hubblean and in the surface region it scales proportional to a higher exponent (α>1) of the radius. The anomalous expansion velocity profile is accompanied by a power-law nucleon density profile in the surface region. Both these features of central heavy-ion reactions disappear at higher energies, and the system follows a uniform Hubble expansion (α1).

  • Received 12 July 2000

DOI:https://doi.org/10.1103/PhysRevC.62.064602

©2000 American Physical Society

Authors & Affiliations

K. Morawetz1,2, M. Płoszajczak2, and V. D. Toneev2,3

  • 1LPC-ISMRA, Boulevard Marechal Juin, F-14050 Caen, France
  • 2Grand Accélérateur National d’Ions Lourds (GANIL), CEA/DSM – CNRS/IN2P3, BP 5027, F-14076 Caen Cedex 05, France
  • 3Bogoliubov Laboratory of Theoretical Physics, Joint Institute for Nuclear Research, RU-141980 Dubna, Russia

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Issue

Vol. 62, Iss. 6 — December 2000

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