Hydrodynamics of nuclear collisions with initial conditions
from perturbative QCD
K.J. Eskola1,2 - K. Kajantie1,2 - P.V. Ruuskanen3
1 CERN/TH, CH-1211 Geneve 23, Switzerland (e-mail: kari.eskola@cern.ch,
keijo.kajantie@cern.ch)
2 Department of Physics,
P.O.Box 9, 00014 University of Helsinki, Finland -
Department of Physics, University of Jyväskylä,
P.O.Box 35, 40351 Jyväskylä, Finland (e-mail: ruuskanen@jyfl.jyu.fi)
Received: 12 May 1997
Abstract
We compute the longitudinal hydrodynamic flow in ultrarelativistic
heavy ion collisions at 
= 5500 GeV by using boost non-invariant
initial conditions following from perturbative QCD. The transfer of
entropy and energy from the central region to larger rapidities
caused by boost non-invariance is determined and the associated decrease
in the lifetime of the system is estimated.
Copyright Springer-Verlag
