With the two-flavor Nambu-Jona-Lasinio(NJL)model,we carried out a phenomenological study on the chiral phase structure,mesonic properties,and transport properties of momentum-space anisotropic quark matter.To calculate the transport coefficients we utilized the kinetic theory in the relaxation time approximation,where the momentum anisotropy is embedded in the estimation of both the distribution function and relaxation time.It was shown that an increase in the anisotropy parameter ξ may result in a catalysis of chiral symmetry breaking.The critical endpoint(CEP)is shifted to lower temperatures and larger quark chemical potentials as ξ increases,and the impact of momentum anisotropy on the CEP temperature is almost the same as that on the quark chemical potential of the CEP.The meson masses and the associated decay widths also exhibit a significant ξdependence.It was observed that the tempera-ture behavior of the scaled shear viscosity η/T3 and scaled electrical conductivity σel/Texhibited a similar dip structure,with the minima of both η/T3 and σel/T shifting toward higher temperatures with increasing ξ.Furthermore,we demonstrated that the Seebeck coefficient S decreases when the temperature rises and its sign is positive,indicating that the dominant carriers for converting the temperature gradient to the electric field are up-quarks.The Seebeck coefficient S is significantly enhanced with a large ξfor a temperature below the critical temperature.

He-Xia Zhang;Yu-Xin Xiao;Jin-Wen Kang;Ben-Wei Zhang

Key Laboratory of Quark and Lepton Physics(MOE)and Institute of Particle Physics,Central China Normal University,Wuhan 430079,China;Guangdong Provincial Key Laboratory of Nuclear Science,Institute of Quantum Matter,South China Normal University,Guangzhou 510006,China

核技术（英文版）

[1]He-Xia Zhang;Yu-Xin Xiao;Jin-Wen Kang;Ben-Wei Zhang-.Phenomenological study of the anisotropic quark matter in the two-flavor Nambu-Jona-Lasinio model)[J].核技术（英文版）,2022(11):170-190

Phenomenological,Nambu,Jona,Lasinio,NJL,mesonic,Texhibited

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