In-medium viscous coefficients of a hot hadronic gas mixture

Show simple item record Mitra, Sukanya Gangopadhyaya, Utsab Ghosh, Snigdha Sarkar, Sourav 2016-11-08T12:34:55Z 2016-11-08T12:34:55Z 2016-10
dc.identifier.citation Gangopadhyaya, Utsab; Ghosh, Snigdha; Sarkar, Sourav and Mitra, Sukanya, “In-medium viscous coefficients of a hot hadronic gas mixture”, Physical Review C, DOI: 10.1103/PhysRevC.94.044914, vol. 94, no. 4, Oct. 2017. en_US
dc.identifier.issn 0556-2813
dc.identifier.issn 1089-490X
dc.description.abstract We estimate the shear and the bulk viscous coefficients for a hot hadronic gas mixture made of pions and nucleons. The viscosities are evaluated in the relativistic kinetic theory approach by solving the transport equation in the relaxation time approximation for binary collisions (ππ, πN, and NN). Instead of the vacuum cross sections usually used in the literature we employ in-medium scattering amplitudes in the estimation of the relaxation times. The modified cross sections for ππ and πN scattering are obtained using one-loop modified thermal propagators for ρ, σ, and in the scattering amplitudes which are calculated using effective interactions. The resulting suppression of the cross sections at finite temperature and baryon density is observed to significantly affect theT and μN dependence of the viscosities of the system. en_US
dc.description.statementofresponsibility by Utsab Gangopadhyaya, Snigdha Ghosh, Sourav Sarkar and Sukanya Mitra
dc.format.extent vol. 94, no. 4
dc.language.iso en_US en_US
dc.publisher American Physical Society en_US
dc.title In-medium viscous coefficients of a hot hadronic gas mixture en_US
dc.type Article en_US
dc.relation.journal Physical Review C

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