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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 2012 Meeting
Section: Nuclear and Elementary Particles Physics
Title:
Disappearence of Jets In He+Cu at 4.5 A GeV/c Relativistic Collisions
Authors:
D. ARGINTARU (1), C. BESLIU(2), Al. JIPA (2), T. ESANU (2)
Affiliation:
(1) Constanta Maritime University, Constanta, Romania
(2) University of Bucharest, Faculty of Physics, P.O.BOX MG-11, Magurele, Romania
E-mail
danut.argintaru@cmu-edu.eu, danut.argintaru@gmail.com
Keywords:
nuclear matter jets, phase transition, multifragmentation, forward-backward emitted particles correlations
Abstract:
The concept of “nuclear matter jets” is an interesting tool for selecting different event structures such as: single-jet events, two-jet events, three-jet events, and non-jet events in He+Cu at 4.5 A GeV/c collisions. We found a relation between the number of jets and the centrality of the collision, and then we noticed an increased sideway peaking of the emitted particles and fragments in central collisions. The special class of non-jet events is characterized by increased fluctuations of multiplicity and small fluctuations of transverse momentum that we associate with the liquid-fog phase transition. The disappearance of jets in non-jet events is a signature of the phase transition as we prove analyzing the forward-backward emitted particles correlations.
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