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UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2024-11-22 1:59 |
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Conference: Bucharest University Faculty of Physics 2003 Meeting
Section: Nuclear and Elementary Particles Physics
Title:
A REVIEW OF EXPERIMENTAL RESULTS OBTAINED IN AU-AU COLLISIONS AT THE RHIC-BNL ENERGIES USING BRAHMS EXPERIMENTAL SET-UP
Authors:
Alexandru JIPA*
for BRAHMS Collaboration from RHIC-BNL
Affiliation:
* Atomic and Nuclear Physics Department, Faculty of Physics, University of Bucharest, ROMANIA
E-mail: jipa@brahms.fizica.unibuc.ro
E-mail
Keywords:
Abstract:
Ultrarelativistic heavy ion collisions are useful “tools” to investigate highly excited dense nuclear matter. At sufficiently high temperature, nuclear matter is expected to undergo a phase transition to quark-gluon plasma. Therefore, new experiments have been proposed to investigate the behaviour of the highly excited dense nuclear matter. One of the experiments performed at the Relativistic Heavy Ion Collider from Brookhaven National Laboratory is the BRAHMS Experiment. In the three running years many experimental data have been obtained. These data permited to establish significant experimental results on charged pion, charged kaon, proton and antiproton production in Au-Au collisions at 130 A GeV and 200 A GeV in CMS.
The present work summarizes the main experimental results on charged particle multiplicities, rapidity distributions, momentum spectra, antiparticle to particle ratios and connects these results with some interesting physical quantities. Their dependencies on the available energies in the CMS in similar collisions are included. Interesting behaviours with the increase of this energy are reported. The most interesting are related to the behaviour of the antiproton to proton ratio on the collision centrality and on the availble energy in the centre of mass system, the strangeness production, Coulomb repulsion and slope parameters of the momentum spectra. A few new steps in the knowledge of the behaviour of the highly excited and dense nuclear matter can be reported.
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