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Fluctuations and correlations of conserved charges in an excluded volume hadron resonance gas model
- Source :
- Phys. Rev. C 90, 034909 (2014)
- Publication Year :
- 2013
-
Abstract
- We present temperature ($T$) and baryonic chemical potential ($\mu_B$) 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 ($\sigma^2/M)$, product of skewness and standard deviation ($S\sigma$), product of kurtosis and variance ($\kappa\sigma^2$), 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.<br />Comment: 15 pages, 13 figures
- Subjects :
- High Energy Physics - Phenomenology
Nuclear Theory
Subjects
Details
- Database :
- arXiv
- Journal :
- Phys. Rev. C 90, 034909 (2014)
- Publication Type :
- Report
- Accession number :
- edsarx.1310.2793
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1103/PhysRevC.90.034909