Speaker
Zhishun Chen
(SYSU)
Description
Recently, ALICE first measured the spin alignment of the J/ψ with respect to the event plane. To explain the experiment, we considered two possible spin-dependent processes of J/ψ −− LO (gluon dissociation) and NLO (inelastic scattering) processes in Bjorken flow, which contain chromomagnetic coupling between J/ψ and gluon. The coupling, together with flow, induces spin alignment, and the dissociation and regeneration will contribute to the spin alignment.
Primary authors
Shu Lin
Zhishun Chen
(SYSU)
