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The recent observation of global polarization of () hyperons and spin alignment of and K^*0 vector mesons create remarkable interest in investigating the particle polarization in the relativistic fluid produced in heavy-ion collisions at GeV/TeV energies. Among other sources of polarization, the Debye mass of a medium plays a crucial role in particle polarization. Any modification brought to the effective mass due to the temperature, strong magnetic field (eB), baryonic chemical potential (₁), and medium anisotropy (), vorticity, etc. , certainly affects the particle polarization. In this work, we explore the global hyperon polarization and the spin alignment of vector mesons corresponding to the strong magnetic field, baryonic chemical potential, and medium anisotropy. We find that the degree of polarization is flavor-dependent for hyperons. Meanwhile, vector meson spin alignment depends on the hadronization mechanisms of initially polarized quarks and anti-quarks. Medium anisotropy significantly changes the degree of polarization in comparison with the magnetic field and baryon chemical potential.
Sahoo et al. (Tue,) studied this question.