Speaker
Description
While jet quenching in relativistic heavy-ion collisions has been extensively studied over decades, the role of spin in this process remains largely unexplored. Since the QCD jets produced in relativistic heavy-ion collision are unpolarized, it seems to be mission impossible to study the quenching of polarized jets.
In recent works [1-3], we demonstrated that the spin correlation of back-to-back dihadron emerges even in unpolarized collisions, empowering unpolarized experiments to shed light on spin effects. We also extend our approach to relativistic heavy-ion collisions, opening up new avenues for investigating the quenching of polarized jets [4]. This talk presents our finding on both the longitudinal and transverse spin correlations of back-to-back dihadron.
References
[1] H.C. Zhang and S.Y. Wei, Probing the longitudinal spin transfer via dihadron polarization correlations in unpolarized ee and pp collisions, Phys. Lett. B 839 (2023), 137821.
[2] Z.X. Chen, H. Dong and S.Y. Wei, Dihadron helicity correlation in photon-nucleus collisions, Phys. Rev. D 110 (2024), 5.
[3] L. Yang, Y.K. Song and S.Y. Wei, Transverse spin correlation of back-to-back dihadron in unpolarized collisions, arXiv:2410.20917.
[4] X. Li, Z.X. Chen, S. Cao and S.Y. Wei, Correlations of dihadron polarization in central, peripheral, and ultraperipheral heavy-ion collisions, Phys. Rev. D 109 (2024), 014035.
