Ideal Fluids, the Quark Gluon Plasma, and Hadronic Gases

3rd International Conference on Mathematical Modeling in Physical Sciences

物理学;数学

Demir, Nasser^1

Physics Department, Faculty of Science, Kuwait University, Khaldiya

13060, Kuwait^1

关键词: Chapman-Enskog methods;    Green-Kubo methods;    Ideal fluids;    Massless particles;    Quantum molecular dynamics;    Quark-gluon plasma;    Shear viscosity coefficients;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/574/1/012155/pdf
DOI  :  10.1088/1742-6596/574/1/012155

来源: IOP

【 摘 要 】

A detailed comparison between two methods to calculate the shear viscosity coefficient of a hot hadronic gas is presented. We choose two systems in this comparison which are massless particles with current algebra cross section and a mixture comprised of pions with rho resonances. The two methods involved are the Green-Kubo method, applied using the Ultrarelativistic Quantum Molecular Dynamics (UrQMD) model to simulate the hadronic medium, and the Chapman-Enskog method. In addition, the effect of the resonance lifetime on the shear viscosity coefficient is investigated.