The 10th International Conference on Chirality, Vorticity and Magnetic Fields in Quantum Matter (chirality 2026)

Spin polarization as an effective probe for QCD EoS？

Not scheduled

20m

Dehan Hotel(德翰大酒店)

oral

Speaker

德贤 韦 (Guangxi University of Science and Technology)

Description

Spin polarization, as a novel method for detecting the rotational properties of QGP which are produced in relativistic heavy-ion collisions, has attractd great interest. We study the impact of parton spin polarization on the effective transport and thermodynamic coefficients and the QCD critical point in non central light- and heavy-ion collisions. By employing the novel kinetic theory method, we found that the transport and thermodynamic coefficients, i.g, speed of sound squared c2s, specific shear viscosity η/s, specific bulk viscosity ζ/s, and mean of free path λ, are significantly affected by spin polarization. These results suggest that spin polarization can serve as an effective probe for the critical point of the QCD phase transition.

References
[1] De-Xian Wei. Impact of spin polarization on the QCD equation of state. Physical Review C 113, 024903 (2026).
[2] De-Xian Wei. Impact of spin polarization on transport and thermodynamic coefficients. Physical Review C 112, 064921 (2025).
[3] De-Xian Wei, Wei-Tian Deng, and Xu-Guang Huang. Thermal vorticity and spin polarization in heavy-ion collisions. Phys. Rev. C 99, 014905 (2019).