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arXiv · 1310.2793

Fluctuations and correlations of conserved charges in an excluded volume hadron resonance gas model

Abhijit Bhattacharyya·Supriya Das·Sanjay K. Ghosh·Rajarshi Ray·Subhasis Samanta
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Abstract

We present temperature ($T$) and baryonic chemical potential ($μ_B$) dependence of higher order fluctuations and correlation between conserved charges in Excluded Volume Hadron Resonance Gas (EVHRG) model. Products of moments, such as ratio of variance to mean ($σ^2/M)$, product of skewness and standard deviation ($Sσ$), product of kurtosis and variance ($κσ^2$), for net-proton, net-kaon and net-charge have been evaluated on the phenomenologically determined freeze-out curve. Further, products of moments for net-proton and net-charge have been compared with the experimental data measured by STAR experiment. The dependence of the model result on the hadronic radius parameter has also been discussed.

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Abhijit Bhattacharyya, Supriya Das, Sanjay K. Ghosh, Rajarshi Ray, Subhasis Samanta. 2014-09-18. Fluctuations and correlations of conserved charges in an excluded volume hadron resonance gas model. https://doi.org/10.1103/physrevc.90.034909

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