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Thermodynamics and Fluctuations-Correlations of Conserved Charges in a Hadron Resonance Gas Model with Attractive and Repulsive Interaction within S-Matrix Formalism

School of Physical Sciences, National Institute of Science Education and Research, HBNI, Jatni 752050, India
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Presented at Hot Quarks 2018—Workshop for Young Scientists on the Physics of Ultrarelativistic Nucleus-Nucleus Collisions, Texel, The Netherlands, 7–14 September 2018.
Proceedings 2019, 10(1), 25; https://doi.org/10.3390/proceedings2019010025
Published: 15 April 2019
We have extended the hadron resonance gas (HRG) model by including the effect of both attractive and repulsive interaction in the scattering matrix (S-matrix) formalism. The attractive part of the interaction is calculated using K-matrix formalism while the repulsive part is included by fitting to experimental phase shifts. We have calculated various thermodynamics quantities like pressure, energy density, entropy density etc. A good agreement between our calculations and the hadronic phase of the lattice QCD (LQCD) simulations is observed. We have also calculated fluctuations and correlations for various conserved charges like baryon, strangeness and electric charge. In the present model, χ B 2 , χ B S 11 and C B S agree well with the LQCD data.
Keywords: heavy-ion collision; hadron resonance gas model; S-matrix; fluctuations; correlations heavy-ion collision; hadron resonance gas model; S-matrix; fluctuations; correlations
MDPI and ACS Style

Dash, A.; Mohanty, B.; Samanta, S. Thermodynamics and Fluctuations-Correlations of Conserved Charges in a Hadron Resonance Gas Model with Attractive and Repulsive Interaction within S-Matrix Formalism. Proceedings 2019, 10, 25.

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