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2024-11-23 18:19

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Conference: Bucharest University Faculty of Physics 2009 Meeting

Section: Nuclear and Elementary Particles Physics

Title:

Comparison of the FLUKA code predictions with the main distribution for the charged hadrons emitted in He-Li, C-C, C-Cu reaction at 4.5 A GeV/c

Authors:

C. Besliu*, Al Jipa*, E Stan**, D Felea**, T. Esanu*, M Calin*, I. V. Grossu*

Affiliation:

* Atomic and Nuclear Physics Chair, Faculty of Physics, University of Bucharest, ROMANIA

** Institute of Space Sciences Bucuharest-Măgurele, ROMANIA

E-mail

emil@spacescience.ro

Keywords:

nuclear collisions at high energy, break-up processes, quark gluon plasma, nuclear flow, Hubble time scale

Abstract:

The dynamics of the nuclear reaction at high and very high energies present multiple features connected to the elementary and collective interactions (nuclear jets, break-up processes, fragmentation, nuclear flow, etc.). In a previous works our group analysed a number of its (nuclear jets, nuclear flow, projectile fragmentation) using only the experimental data and their correlations. In this work we compare the general experimental distributions of a few hadrons (p, π+, π- etc) with the predictions of the FLUKA code for different nucleus-nucleus collisions at 4.5 A GeV/c. The FLUKA code could enlarge the field of our information by the new hypotheses involved and by corresponding subroutines introduced in the code structure, as: break-up mechanism, evaporation mechanism, competitions among mechanisms (for example, those between break-up and evaporation in preequilibrium states). A comparison for the temporal evolution of the hadrons emission – in a like-Hubble time scale – is another interesting results of this work.