scholarly journals Net charge fluctuations inAu+Aucollisions atsNN=130GeV

2003 ◽  
Vol 68 (4) ◽  
Author(s):  
J. Adams ◽  
C. Adler ◽  
M. M. Aggarwal ◽  
Z. Ahammed ◽  
J. Amonett ◽  
...  
2017 ◽  
Vol 2017 ◽  
pp. 1-14 ◽  
Author(s):  
D. K. Mishra ◽  
P. Garg ◽  
P. K. Netrakanti ◽  
L. M. Pant ◽  
A. K. Mohanty

We present a subset of experimental results on charge fluctuation from the heavy-ion collisions to search for phase transition and location of critical point in the QCD phase diagram. Measurements from the heavy-ion experiments at the SPS and RHIC energies observe that total charge fluctuations increase from central to peripheral collisions. The net-charge fluctuations in terms of dynamical fluctuation measure ν(+-,dyn) are studied as a function of collision energy (sNN) and centrality of the collisions. The product of ν(+-,dyn) and 〈Nch〉 shows a monotonic decrease with collision energies, which indicates that at LHC energy the fluctuations have their origin in the QGP phase. The fluctuations in terms of higher moments of net-proton, net-electric charge, and net-kaon have been measured for various sNN. Deviations are observed in both Sσ and κσ2 for net-proton multiplicity distributions from the Skellam and hadron resonance gas model for sNN<39 GeV. Higher moment results of the net-electric charge and net-kaon do not observe any significant nonmonotonic behavior as a function of collision energy. We also discuss the extraction of the freeze-out parameters using particle ratios and experimentally measured higher moments of net-charge fluctuations. The extracted freeze-out parameters from experimentally measured moments and lattice calculations are found to be in agreement with the results obtained from the fit of particle ratios to the thermal model calculations.


2004 ◽  
Vol 21 (2-4) ◽  
pp. 261-266 ◽  
Author(s):  
Claude A. Pruneau ◽  
Collaboration STAR

2003 ◽  
Vol 68 (3) ◽  
Author(s):  
J. Nystrand ◽  
E. Stenlund ◽  
H. Tydesjö

2006 ◽  
Vol 25 (2-4) ◽  
pp. 401-408 ◽  
Author(s):  
Claude A. Pruneau ◽  
Collaboration STAR

2019 ◽  
Vol 99 (3) ◽  
Author(s):  
Rudolph Rogly ◽  
Giuliano Giacalone ◽  
Jean-Yves Ollitrault

Universe ◽  
2020 ◽  
Vol 7 (1) ◽  
pp. 6
Author(s):  
He Liu ◽  
Jun Xu

We have studied the possible isospin corrections on the skewness and kurtosis of net-baryon and net-charge fluctuations in the isospin asymmetric matter formed in relativistic heavy-ion collisions at RHIC-BES energies, based on a 3-flavor Polyakov-looped Nambu–Jona–Lasinio model. With typical scalar–isovector and vector–isovector couplings leading to the splitting of u and d quark chiral phase transition boundaries and critical points, we have observed considerable isospin effects on the susceptibilities, especially those of net-charge fluctuations. Reliable experimental measurements at even lower collision energies are encouraged to confirm the observed isospin effects.


2009 ◽  
Vol 79 (2) ◽  
Author(s):  
B. I. Abelev ◽  
M. M. Aggarwal ◽  
Z. Ahammed ◽  
B. D. Anderson ◽  
D. Arkhipkin ◽  
...  

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