Global Λ polarization in heavy-ion collisions from a transport model

  title={Global $\Lambda$ polarization in heavy-ion collisions from a transport model},
  author={Hui Li and Longgang Pang and Qun Wang and Xiao-liang Xia},
  journal={Physical Review C},
Off-central relativistic heavy ion collisions impart very large orbital angular momenta onto the quark-gluon plasma, creating a strong vortex in the initial hot fluid and appearing eventually, via spin-vorticity coupling, as particle polarization. From the vorticity field given by a multi-phase transport model the authors compute the global polarization of $\mathrm{\ensuremath{\Lambda}}$ baryons which is in agreement with experimental data. This suggests that the spin of a hadron could provide… 

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