Otro
Shear viscosity due to Landau damping from the quark-pion interaction
Registro en:
Physical Review C. College Pk: Amer Physical Soc, v. 88, n. 6, 5 p., 2013.
0556-2813
10.1103/PhysRevC.88.068201
WOS:000328581100004
WOS000328581100004.pdf
Autor
Ghosh, Sabyasachi
Lahiri, Anirban
Majumder, Sarbani
Ray, Rajarshi
Ghosh, Sanjay K.
Resumen
We have calculated the shear viscosity coefficient eta of the strongly interacting matter in the relaxation time approximation, where a quasiparticle description of quarks with their dynamical masses is considered from the Nambu-Jona-Lasinio model. Due to the thermodynamic scattering of quarks with pseudoscalar-type condensate (i.e., pion), a nonzero Landau damping will be acquired by the propagating quarks. This Landau damping may be obtained from the Landau cut contribution of the in-medium self-energy of a quark-pion loop, which is evaluated in the framework of real-time thermal field theory. Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)