Erlangen 2001 – scientific programme
Parts | Days | Selection | Search | Downloads | Help
HK: Physik der Hadronen und Kerne
HK 10: Postersitzung: Theorie
HK 10.6: Poster
Tuesday, March 20, 2001, 10:30–12:45, R
Anomalous radial expansion in central heavy-ion reactions — •K. Morawetz1,2, M. Płoszajczak3, and V.D. Toneev4 — 1Max-Planck-Institute for the Physics of Complex Systems, Noethnitzer Str. 38, 01187 Dresden, Germany — 2LPC-ISMRA, Bld Marechal Juin, 14050 Caen, France — 3Grand Accélérateur National d’Ions Lourds (GANIL), CEA/DSM – CNRS/IN2P3, BP 5027, F-14076 Caen Cedex 05, France — 4Bogoliubov Laboratory of Theoretical Physics, Joint Institute for Nuclear Research, 141980 Dubna, Russia
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 (α ≃ 1).
Phys. Rev. C 62, 64602:
Anomalous radial expansion in central heavy-ion reactions,
K. Morawetz, M. Płoszajczak, V.D. Toneev