Studies of fluctuation processes in nuclear collisions Page: 4 of 23
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PREFACE
This report summarizes the progress on grant No. DE—FG05—89ER.40530 during the
period February 15, 1991 to February 29, 1992.
We developed the Boltzmann-Langevin model (BLE) further on the basis of
Walecka-type field theory for describing the fluctuation dynamics at relativistic energies.
In semi-classical limits, this gives rise to a set of coupled BLEs for the fluctuating
distribution functions of interacting nucleons, deltas and pions. We investigated the kaon
production mechanism at energies below the free nucleon-nucleon threshold in the
framework of the BLE model, and compared the results with similar calculations done
within the BUU model. Some results of the calculations are contained in this report. The
principal investigator spent a fruitful summer (1991) at Michigan State University, where
together with D. Boilley who is a graduate student at GANIL, we studied the damping
properties of collective vibrations in a memory-dependent transport model. Two papers
have been published (Anns of Phys. and Phys. Lett. B), two manuscripts have been
submitted for publication (Nucl. Phys. A and Phys. Lett. B), and one manuscript is in
preparation for publication. Several seminars and contributed talks were presented at
various meetings.
Most of the work was done in collaboration with E. Suraud, M. Belkacem and D.
Boilley of GANIL and P. G. Reinhard of the University of Erlangen. Their collaboration
has been very stimulating, and is much appreciated.
The secretarial and accounting duties for this grant have been performed by Gloria
Julian of the TTU Department of Physics, and I wish to express my appreciation. I also
wish to thank the scientists at MSU—Cyclotron Laboratory, at GANIL, and at GSI for
their hospitality during my visits.
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Ayik, S. Studies of fluctuation processes in nuclear collisions, report, February 1, 1992; Cookeville, Tennessee. (https://digital.library.unt.edu/ark:/67531/metadc1102054/m1/4/: accessed April 18, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.