학술논문
Intermittency Study of Charged Particles Generated in Pb-Pb Collisions at sNN=2.76 TeV Using EPOS3.
Document Type
Article
Author
Source
Subject
*MULTIPLICITY of nuclear particles
*PHASE transitions
*MULTIFRACTALS
*FRACTAL dimensions
*PHASE space
*PARTICLES
*
*
*
*
*
Language
ISSN
1687-7357
Abstract
Charged particle multiplicity fluctuations in Pb-Pb collisions are studied for the central events generated using EPOS3 (hydro and hydro+cascade) at s N N = 2.76 TeV. Intermittency analysis is performed in the midrapidity region in two-dimensional (η , ϕ) phase space within the narrow transverse momentum ( p T ) bins in the low p T region ( p T ≤ 1.0 GeV / c). Power-law scaling of the normalized factorial moments with the number of bins is not observed to be significant in any of the p T bins. Scaling exponent ν , deduced for a few p T bins, is greater than that of the value 1.304, predicted for the second-order phase transition by the Ginzburg-Landau theory. The link in the notions of fractality is also studied. Generalized fractal dimensions, D q , are observed to decrease with the order of the moment q suggesting the multifractal nature of the particle generation in EPOS3. [ABSTRACT FROM AUTHOR]