scholarly journals Energy dependence of particle ratio fluctuations in centralPb+Pbcollisions fromsNN=6.3to 17.3 GeV

2009 ◽  
Vol 79 (4) ◽  
Author(s):  
C. Alt ◽  
T. Anticic ◽  
B. Baatar ◽  
D. Barna ◽  
J. Bartke ◽  
...  
Keyword(s):  
Energy Dependence ◽  
Particle Ratio ◽  
Particle Ratio Fluctuations

scholarly journals System-size dependence of particle-ratio fluctuations in Pb + Pb collisions at 158AGeV

2013 ◽  
Vol 87 (2) ◽  
Author(s):  
T. Anticic ◽  
B. Baatar ◽  
D. Barna ◽  
J. Bartke ◽  
H. Beck ◽  
...  
Keyword(s):  
Size Dependence ◽  
System Size ◽  
Particle Ratio ◽  
Particle Ratio Fluctuations

scholarly journals Phase-space dependence of particle-ratio fluctuations in Pb + Pb collisions from 20Ato 158A GeV beam energy

2014 ◽  
Vol 89 (5) ◽  
Author(s):  
T. Anticic ◽  
B. Baatar ◽  
J. Bartke ◽  
H. Beck ◽  
L. Betev ◽  
...  
Keyword(s):  
Phase Space ◽  
Beam Energy ◽  
Particle Ratio ◽  
Space Dependence ◽  
Particle Ratio Fluctuations

Scaling properties and charge dependence of particle ratio fluctuations at RHIC

Open Physics ◽  
2012 ◽  
Vol 10 (6) ◽  
Author(s):  
Hui Wang
Keyword(s):  
Baryon Number ◽  
Scaling Properties ◽  
Qcd Phase Transition ◽  
Star Data ◽  
Qcd Phase Diagram ◽  
Charge Dependence ◽  
Model Predictions ◽  
200 Gev ◽  
Particle Ratio ◽  
Particle Ratio Fluctuations

AbstractIt has been suggested that the existence of a QCD phase transition would cause an increase and divergence of fluctuations. Thus event-by-event particle ratio fluctuations could be used to study strangeness and baryon number fluctuations near the critical point in the QCD phase diagram. In this paper, we present dynamical K/π, p/π, and K/p ratio fluctuations from Au+Au collisions at $\sqrt {s_{NN} } $ = 7.7 to 200 GeV. Charge dependent results as well as multiplicity scaling properties of these fluctuation results are discussed. The STAR data are compared to different theoretical model predictions and previous experimental results.

scholarly journals Event-by-Event Particle Ratio Fluctuations at LHC Energies

2021 ◽  
Vol 2021 ◽  
pp. 1-14
Author(s):  
Shaista Khan ◽  
Bushra Ali ◽  
Anuj Chandra ◽  
Shakeel Ahmad
Keyword(s):  
Charged Particle ◽  
Particle Density ◽  
Monte Carlo Study ◽  
Jet Quenching ◽  
Alice Experiment ◽  
Central Collisions ◽  
Particle Ratio ◽  
Charged Particle Density ◽  
Predicted Values ◽  
Particle Ratio Fluctuations

A Monte Carlo study of identified particle ratio fluctuations at LHC energies is carried out in the framework of HIJING model using the fluctuation variable ν dyn . The simulated events for Pb-Pb collisions at s N N = 2.76 and 5.02 TeV and Xe-Xe collisions at s N N = 5.44   TeV are analyzed. From this study, it is observed that the values of π , K , p , K , and π , p follow the similar trends of energy dependence as observed in the most central collision data by NA49, STAR, and ALICE experiments. It is also observed that ν dyn for all the three combinations of particles for semicentral and central collisions, the model predicted values of ν dyn A , B for Pb-Pb collisions at s N N = 2.76   TeV agree fairly well with those observed in the ALICE experiment. For peripheral collisions, however, the model predicted values of ν dyn π , K are somewhat smaller, whereas for p , K and π , p it predicts larger values as compared to the corresponding experimental values. The possible reasons for the observed differences are discussed. The ν dyn values scaled with charged particle density when plotted against N part exhibit a flat behaviour, as expected from the independent particle emission sources. For p , K and π , p combinations, a departure from the flat trend is, however, observed in central collisions in the case of low p T window when the effect of jet quenching or resonances is considered. Furthermore, the study of ν dyn A , B dependence on particle density for various collision systems (including proton-proton collisions) suggests that at LHC energies ν dyn values for a given particle pair are simply a function of charged particle density, irrespective of system size, beam energy, and collision centrality.

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