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UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2024-11-22 1:54 |
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Conference: Bucharest University Faculty of Physics 2011 Meeting
Section: Nuclear and Elementary Particles Physics
Title:
On the existence of "resonance matter" and "clusterization" in Au+Au at sqrt(sNN)= 200 GeV
Authors:
C. Besliu (1), T. Esanu (1), M. Calin (1) , A. Jipa(1), V. Grossu(1), D. Felea (2)
Affiliation:
(1) University of Bucharest, Faculty of Physics, Romania
(2)Institute of Space Science, Magurele, Romania
E-mail
esanu.tiberiu@gmail.com
Keywords:
resonance matter, clusterization, Chaos Many Body Engine simulations
Abstract:
The experiment that provided the data necessary for this analysis is the Broad Range Hadron Magnetic Spectrometer- one of the four experimental setups from RHIC, BNL, USA. Most of the experimental results involved in our analysis were acquired in Au+Au relativistic nuclear collisions at sqrt(sNN)=200GeV. The main information and results were obtained according to the proposed conventional Hubble time scale. This work contains an analysis of a possible bi-particle clusterization (pπ, Kπ, Kp, ππ) in semi-inclusive Au+Au collisions at sqrt (sNN)= 200 GeV. The general aspect of the temporal analysis for the reactions mentioned above highlighted the existence of a great number of maximum in the bi-particles effective mass spectra. This is the reason why we were encouraged to precede with the analysis of the nuclear resonance presence. The cluster states fitted and their systematic along with the temporal dependencies of masses and half widths ("interaction age")lead to positive arguments on the existence of resonance matter. We found that there is a strong dependence of the reaction time and nuclear density with the hadrons "interaction age" and cluster average life.We also used Chaos Many Body engine- a new way to describe the possible existence of resonances in relativistic Au+Au collisions at sqrt(sNN)=200 GeV. Using a simplified model of the "fireball" dynamics- the Chaos Many Body engine used for three initial structure assumptions of the system, we obtained some results that verifies, in a global mode, the possibility of the resonance matter existence.
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