DOI 10.1007/s100529900002
On transverse momentum event-by-event fluctuations in string hadronic models
Feng Liu1,2 - An Tai3 - M. Gazdzicki1 - R. Stock1
1 Institut für Kernphysik, Universität Frankfurt,
Germany
2 Institute of Particle Physics, Huazhong Normal University,
Wuhan, P.R. China
3 Institute of High Energy Physics, Beijing, P.R. China
Received: 23 October 1998 / Published online: 11 March 1999
Abstract
Transverse momentum event-by-event fluctuations are studied within
the string-hadronic model of high energy nuclear collisions, LUCIAE.
Data on
non-statistical pT fluctuations in p+p interactions are reproduced.
Fluctuations of similar magnitude are predicted for nucleus-nucleus
collisions, in contradiction to the preliminary NA49 results.
The introduction of a string clustering mechanism (Firecracker Model)
leads to a further, significant increase of pT fluctuations
for nucleus-nucleus
collisions.
Secondary hadronic interactions, as implemented in LUCIAE,
cause only a small
reduction of pT fluctuations.
Copyright Springer-Verlag
