scholarly journals Energy and centrality dependence of chemical freeze-out parameters from model calculations

2013 ◽  
Author(s):  
Lokesh Kumar
Keyword(s):  
Centrality Dependence ◽  
Model Calculations ◽  
Chemical Freeze ◽  
Freeze Out

scholarly journals Chemical freeze-out parameters at RHIC from microscopic model calculations

2002 ◽  
Vol 698 (1-4) ◽  
pp. 383-386 ◽  
Author(s):  
L.V. Bravina ◽  
E.E. Zabrodin ◽  
S.A. Bass ◽  
A. Faessler ◽  
C. Fuchs ◽  
...  
Keyword(s):  
Microscopic Model ◽  
Model Calculations ◽  
Chemical Freeze ◽  
Freeze Out

scholarly journals Centrality dependence of freeze-out parameters from Au+Au collisions at $\sqrt {s_{NN} } $ = 7.7, 11.5 and 39 GeV

Open Physics ◽  
2012 ◽  
Vol 10 (6) ◽  
Author(s):  
Lokesh Kumar
Keyword(s):  
Wave Model ◽  
Fixed Target ◽  
Centrality Dependence ◽  
Fixed Target Experiments ◽  
Model Calculations ◽  
Particle Ratios ◽  
Star Experiment ◽  
Beam Energy Scan ◽  
Measured Particle ◽  
Freeze Out

AbstractThe RHIC beam energy scan program in its first phase collected data for Au+Au collisions at beam energies of 7.7, 11.5 and 39 GeV. The event statistics collected at these lower energies allow us to study the centrality dependence of various observables in detail, and compare to fixed-target experiments at SPS for similar beam energies. The chemical and kinetic freeze-out parameters can be extracted from the experimentally measured yields of identified hadrons within the framework of thermodynamical models. These then provide information about the system at the stages of the expansion where inelastic and elastic collisions of the constituents cease. We present the centrality dependence of freeze-out parameters for Au+Au collisions at midrapidity for $\sqrt {s_{NN} } $ = 7.7, 11.5, and 39 GeV from the STAR experiment. The chemical freeze-out conditions are obtained by comparing the measured particle ratios (involving π, K, p, and p) to those from the statistical thermal model calculations. The kinetic freeze-out conditions are extracted at these energies by simultaneously fitting the invariant yields of identified hadrons (π, K, and p) using Blast Wave model calculations.

scholarly journals Centrality dependence of hadronization and chemical freeze-out conditions in heavy ion collisions atsNN=2.76TeV

2014 ◽  
Vol 90 (5) ◽  
Author(s):  
Francesco Becattini ◽  
Marcus Bleicher ◽  
Eduardo Grossi ◽  
Jan Steinheimer ◽  
Reinhard Stock
Keyword(s):  
Heavy Ion Collisions ◽  
Heavy Ion ◽  
Centrality Dependence ◽  
Ion Collisions ◽  
Chemical Freeze ◽  
Freeze Out

scholarly journals Highlights of the beam energy scan from STAR

Open Physics ◽  
2012 ◽  
Vol 10 (6) ◽  
Author(s):  
Alexander Schmah
Keyword(s):  
Beam Energy ◽  
Elliptic Flow ◽  
Published Data ◽  
Centrality Dependence ◽  
Particle Yield ◽  
Beam Energy Scan ◽  
Good Agreement ◽  
Chemical Freeze ◽  
Freeze Out

AbstractThe first part of the beam energy scan (BES) program at RHIC was successfully completed in the years 2010 and 2011. First STAR results from particle yield measurements are in good agreement with previously published data from SPS and AGS experiments whereas other results like azimuthal HBT and K/π event-by-event fluctuations differ at some energies. In addition, new observations like the centrality dependence of chemical freeze-out parameters (T ch and µB) or the smoothly increasing difference with decreasing energy in the elliptic flow v 2 between particles and corresponding anti-particles, are discussed.

scholarly journals Fluctuations of conserved charges within a Hadron Resonance Gas approach: chemical freeze-out conditions from net-charge and net-proton fluctuations

2015 ◽  
Vol 97 ◽  
pp. 00019
Author(s):  
V. Mantovani Sarti ◽  
P. Alba ◽  
W. Alberico ◽  
R. Bellwied ◽  
M. Bluhm ◽  
...  
Keyword(s):  
Net Charge ◽  
Conserved Charges ◽  
Chemical Freeze ◽  
Freeze Out

scholarly journals Non-Smooth Chemical Freeze-Out and Apparent Width of Wide Resonances and Quark Gluon Bags in a Thermal Environment

2015 ◽  
Vol 60 (3) ◽  
pp. 181-200 ◽  
Author(s):  
K.A. Bugaev ◽  
◽  
A.I. Ivanytskyi ◽  
D.R. Oliinychenko ◽  
E.G. Nikonov ◽  
...  
Keyword(s):  
Thermal Environment ◽  
Chemical Freeze ◽  
Freeze Out

scholarly journals Chiral condensate and chemical freeze-out

2011 ◽  
Vol 8 (8) ◽  
pp. 811-817 ◽  
Author(s):  
D. B. Blaschke ◽  
J. Berdermann ◽  
J. Cleymans ◽  
K. Redlich
Keyword(s):  
Chiral Condensate ◽  
Chemical Freeze ◽  
Freeze Out

scholarly journals Chemical Freeze-Out Conditions in Hadron Resonance Gas

2016 ◽  
pp. 127-137 ◽  
Author(s):  
V. Vovchenko ◽  
M. I. Gorenstein ◽  
L. M. Satarov ◽  
H. Stöcker
Keyword(s):  
Chemical Freeze ◽  
Freeze Out
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