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The current status of various thermal and statistical descriptions of particle production in the ultra-relativistic heavy-ion collisions experiments is presented in detail. We discuss the formulation of various types of thermal models of a…

High Energy Physics - Phenomenology · Physics 2017-01-06 S. K. Tiwari , C. P. Singh

The equation of state of hadron resonance gas at finite temperature and baryon density is calculated taking into account finite-size effects within the excluded volume model. Contributions of known hadrons with masses up to 2 GeV are…

High Energy Physics - Phenomenology · Physics 2010-04-14 L. M. Satarov , M. N. Dmitriev , I. N. Mishustin

We discuss the modeling of the hadronic phase of QCD at finite magnetic field in the framework of hadron resonance gas (HRG). We focus on the statistical description of particle yields that include contribution from resonance decays. We…

High Energy Physics - Phenomenology · Physics 2024-12-23 Michał Marczenko , Michał Szymański , Pok Man Lo , Bithika Karmakar , Pasi Huovinen , Chihiro Sasaki , Krzysztof Redlich

In this work we discuss a modified version of Excluded Volume Hadron Resonance Gas model and also study the effect of Lorentz contraction of the excluded volume on scaled pressure and susceptibilities of conserved charges. We find that the…

High Energy Physics - Phenomenology · Physics 2021-03-10 Somenath Pal , Abhijit Bhattacharyya , Rajarshi Ray

Recent lattice QCD results, comparing to a hadron resonance gas model, have shown the need for hundreds of particles in hadronic models. These extra particles influence both the equation of state and hadronic interactions within hadron…

High Energy Physics - Phenomenology · Physics 2022-07-21 J. Salinas San Martin , J. Noronha-Hostler , H. Elfner , J. Hammelmann , R. Hirayama

Search for a proper and realistic equation of state (EOS) for strongly interacting matter used in the study of the QCD phase diagram still appears as a challenging problem. Recently, we constructed a hybrid model description for the quark…

High Energy Physics - Phenomenology · Physics 2013-05-20 P. K. Srivastava , C. P. Singh

Using a Hagedorn resonance gas picture and quark-hadron duality we estimate the dilepton emission rate in the vicinity of the QCD deconfinement phase transition. The result is then used to calculate a dilepton spectrum in ultrarelativistic…

High Energy Physics - Phenomenology · Physics 2011-09-13 A. V. Leonidov , P. V. Ruuskanen

In the present work, we analyze several strange as well as non-strange relative hadronic yields obtained in the ultra-relativistic heavy-ion collisions (URHIC) experiments over a wide range of center-of-mass collision energy…

High Energy Physics - Phenomenology · Physics 2025-05-13 Sameer Ahmad Mir , Iqbal Mohi Ud Din , Nasir Ahmad Rather , Saeed Uddin , M. Farooq Mir

Recent Lattice QCD (LQCD) studies suggest that there are missing resonances in the strange sector of the Hadron Resonance Gas (HRG) model. By adopting the continuous Hagedorn mass spectrum, we present how different medium compositions…

Nuclear Theory · Physics 2016-01-21 Michał Marczenko

This work investigates the thermo-chemical freeze-out condition of the multi-component hot and dense hadron resonance gas (HRG) formed in the ultra-relativistic nucleus-nucleus collisions (URNNC). The van der Waals (VDW) type model used in…

High Energy Physics - Phenomenology · Physics 2024-12-16 Iqbal Mohi Ud Din , Sameer Ahmad Mir , Nasir Ahmad Rather , Saeed Uddin , Rameez Ahmad Parra

Net-baryon, net-charge and net-strangeness number fluctuations in high energy heavy-ion collisions are discussed within the framework of a hadron resonance gas (HRG) model. Ratios of the conserved number susceptibilities calculated in HRG…

Nuclear Experiment · Physics 2015-06-15 P. Garg , D. K. Mishra , P. K. Netrakanti , B. Mohanty , A. K. Mohanty , B. K. Singh , N. Xu

Hadron-hadron interaction and Deep Inelastic Scattering (DIS) at very high energies is dominated by events at small-$x_B$ regime. Interesting and complex physical content of this regime is described by a phenomenological model called…

High Energy Physics - Phenomenology · Physics 2011-01-25 Houri Ziaeepour

Using the recently published model for the collisional energy loss of heavy quarks (Q) in a Quark Gluon Plasma (QGP), based on perturbative QCD (pQCD) with a running coupling constant, we study the interaction between heavy quarks and…

High Energy Physics - Phenomenology · Physics 2010-04-14 P. B. Gossiaux , R. Bierkandt , J. Aichelin

The lattice QCD data of pressure and the energy density have been used to extract the hadronic radius parameter of the excluded volume hadron resonance gas (EVHRG) model. The equation of state can be described well with the extracted radius…

High Energy Physics - Phenomenology · Physics 2018-06-06 Subhasis Samanta

The hadron resonance gas (HRG) model is often believed to correctly describe the confined phase of QCD. This assumption is the basis of many phenomenological works on QCD thermodynamics and of the analysis of hadron yields in relativistic…

The shear viscosity $\eta$ in the van der Waals excluded volume hadron-resonance gas model is considered. For the shear viscosity the result of the non-relativistic gas of hard-core particles is extended to the mixture of particles with…

Nuclear Theory · Physics 2011-12-06 M. I. Gorenstein , M. Hauer , O. N. Moroz

We compare the trace anomaly, strangeness and baryon number fluctuations calculated in lattice QCD with expectations based on hadron resonance gas model. We find that there is a significant discrepancy between the hadron resonance gas and…

High Energy Physics - Phenomenology · Physics 2010-05-12 P. Huovinen , P. Petreczky

The standard implementation of the HRG model has been shown to be unable to describe all the available data on QCD matter. Here we show the balance of repulsive and attractive hadronic interactions on QCD thermodynamics through observables…

High Energy Physics - Phenomenology · Physics 2018-03-14 Paolo Alba

We have estimated the dimensionless parameters such as Reynolds number ($Re$), Knudsen number ($Kn$) and Mach number ($Ma$) for a multi-hadron system by using the excluded volume hadron resonance gas (EVHRG) model along with Hagedorn mass…

High Energy Physics - Phenomenology · Physics 2023-06-27 Ronald Scaria , Dushmanta Sahu , Captain R. Singh , Raghunath Sahoo , Jan-e Alam

The formalism to augment the classical models of equation of state for real gases with the quantum statistical effects is presented. It allows an arbitrary excluded volume procedure to model repulsive interactions, and an arbitrary…

Nuclear Theory · Physics 2017-09-29 Volodymyr Vovchenko