A STUDY OF MULTIFRACTALITY AND PHASE TRANSITION IN HEAVY-ION COLLISIONS — EXPERIMENTAL DATA VERSUS MODEL SIMULATION

Fractals ◽  
2018 ◽  
Vol 26 (01) ◽  
pp. 1850015 ◽  
Author(s):  
SWARNAPRATIM BHATTACHARYYA ◽  
MARIA HAIDUC ◽  
ALINA TANIA NEAGU ◽  
ELENA FIRU
Keyword(s):  
Phase Transition ◽  
Model Simulation ◽  
Landau Theory ◽  
Factorial Moment ◽  
Heavy Ion ◽  
Experimental Results ◽  
Ginzburg Landau ◽  
Ion Collisions ◽  
Hadron Phase ◽  
Rhic Data

In this paper, we have investigated the presence of multifractality and the possibility of quark–hadron phase transition in the multiparticle production in [Formula: see text]O–AgBr, [Formula: see text]Si–AgBr and [Formula: see text]S–AgBr interactions at 4.5[Formula: see text]AGeV/[Formula: see text] in the framework of Ginzburg–Landau theory of second-order phase transition following the Takagi moment methodology. The same analysis with the factorial moment method has also been performed. Experimental results have been compared with the prediction of UrQMD and AMPT models. A comparison of experimental results with the analysis of UrQMD simulated RHIC data by the method of Takagi moment has also been presented. Comparison of experimental results with previous results of emulsion experiments has been mentioned.

scholarly journals Cluster production in quark-hadron phase transition in heavy-ion collisions

1994 ◽  
Vol 72 (6) ◽  
pp. 820-823 ◽  
Author(s):  
Rudolph C. Hwa ◽  
C. S. Lam ◽  
Jicai Pan
Keyword(s):  
Phase Transition ◽  
Heavy Ion Collisions ◽  
Heavy Ion ◽  
Ion Collisions ◽  
Hadron Phase

INFLUENCE OF LONG-RANGE CORRELATION ON THE SCALING PROPERTIES OF THE NORMALIZED FACTORIAL CORRELATORS IN RELATIVISTIC HEAVY-ION COLLISIONS

2013 ◽  
Vol 22 (08) ◽  
pp. 1350059 ◽  
Author(s):  
X. Z. BAI ◽  
C. B. YANG
Keyword(s):  
Phase Transition ◽  
Heavy Ion ◽  
Gluon Plasma ◽  
Relativistic Heavy Ion Collisions ◽  
Ginzburg Landau ◽  
Scaling Properties ◽  
Ion Collisions ◽  
Range Correlation ◽  
Dynamical Fluctuations ◽  
Second Order Phase Transition

The effect of multiplicity correlation between two bins to the dynamical fluctuations is investigated for a second-order phase transition from quark–gluon plasma (QGP) to hadrons, within the Ginzburg–Landau description for the transition. Normalized factorial correlators are used to characterize the dynamical fluctuations. A scaling behavior among the correlators is found, and an approximate universal exponent is obtained with very weak dependence on the details of the phase transition.

HEAVY ION THEORY: QCD AND MATTER IN EXTREMIS

2007 ◽  
Vol 22 (30) ◽  
pp. 5474-5480
Author(s):  
XIN-NIAN WANG
Keyword(s):  
Phase Transition ◽  
High Temperature ◽  
Nuclear Matter ◽  
Dense Matter ◽  
Heavy Ion ◽  
High Energy ◽  
Experimental Results ◽  
Relativistic Heavy Ion Collider ◽  
Ion Collisions ◽  
Strongly Interacting

Nuclear matter is predicted to undergo a phase transition and become a plasma of quarks and gluons (QGP) at high temperature and density. Recent experimental results from high-energy heavy-ion collisions at the Relativistic Heavy-ion Collider (RHIC) indicate the production of a strongly interacting quark-gluon matter with fluid-like properties. I will discuss some expected features of QCD at high temperature and density, theoretical interpretations of experimental observations and challenges in unraveling some of the basic properties of dense matter in the strongly interacting regime.

A STUDY OF QUARK-HADRON PHASE TRANSITION

1995 ◽  
Vol 10 (29) ◽  
pp. 4179-4185 ◽  
Author(s):  
B. CHAKRABARTI ◽  
T.L. REMA DEVI ◽  
A. BHATTACHARYA
Keyword(s):  
Phase Transition ◽  
Critical Temperature ◽  
Landau Theory ◽  
Anomalous Behavior ◽  
Ginzburg Landau ◽  
Hadron Phase ◽  
Theory Of Superconductivity

The anomalous behavior of the thermodynamic co-ordinates along with the hadronic critical temperature (Tc) is studied and the properties of the surrounding vacuum are investigated in the framework of the Ginzburg-Landau theory of superconductivity, with interesting conclusions.

CHARMONIUM PRODUCTION IN Pb–Pb COLLISIONS AT ALICE: FROM SUPPRESSION TO REGENERATION?

2013 ◽  
Vol 28 (21) ◽  
pp. 1330018 ◽  
Author(s):  
ENRICO SCOMPARIN
Keyword(s):  
Phase Transition ◽  
Cross Sections ◽  
Short Review ◽  
Heavy Ion ◽  
Gluon Plasma ◽  
Alice Experiment ◽  
Model Calculations ◽  
Ion Collisions ◽  
Quark Production ◽  
History Of

Heavy quarkonium states are considered as one of the key observables for the study of the phase transition from a system made of hadrons towards a Quark–Gluon Plasma (QGP). In the last 25 years, experiments at CERN and Brookhaven have studied collisions of heavy ions looking for a suppression of charmonia/bottomonia, considered as a signature of the phase transition. After an introduction to the main concepts behind these studies and a short review of the SPS and RHIC results, I will describe the results obtained in Pb – Pb collisions by the ALICE experiment at the LHC. The ALICE findings will be critically compared to those of lower energy experiments, to CMS results, and to model calculations. The large cross-sections for heavy-quark production at LHC energies are expected to induce a novel production mechanism for charmonia in heavy-ion collisions, related to a recombination of [Formula: see text] pairs along the history of the collision and/or at hadronization. The occurrence of such a process at the LHC will be discussed. Finally, prospects for future measurements will be shortly addressed.

scholarly journals CRITICAL PHENOMENA IN DEEP INELASTIC SCATTERING

2010 ◽  
Vol 25 (31) ◽  
pp. 5667-5682 ◽  
Author(s):  
L. L. JENKOVSZKY ◽  
ANDREA NAGY ◽  
S. M. TROSHIN ◽  
JOLÁN TURÓCI ◽  
N. E. TYURIN
Keyword(s):  
Phase Transition ◽  
Inelastic Scattering ◽  
Deep Inelastic Scattering ◽  
Deeply Virtual Compton Scattering ◽  
Virtual Compton Scattering ◽  
Heavy Ion ◽  
High Energy ◽  
Ion Collisions ◽  
Bjorken X ◽  
Insight Into

Saturation in deep inelastic scattering and deeply virtual Compton scattering is associated with a phase transition between the partonic gas, typical of moderate x and Q2, and partonic fluid appearing at increasing Q2 and decreasing Bjorken x. In this paper we do not intend to propose another parametrization of the structure function; instead we suggest a new insight into the internal structure of the nucleon, as seen in deep inelastic scattering, and its connection with that revealed in high-energy nucleons and heavy-ion collisions.

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