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arxiv: nucl-th/0410079 · v5 · submitted 2004-10-18 · ⚛️ nucl-th · hep-ph

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Globally Polarized Quark-gluon Plasma in Non-central A+A Collisions

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classification ⚛️ nucl-th hep-ph
keywords globalpolarizationalongasymmetrycollisionsdirectionhadronsnon-central
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Produced partons have large local relative orbital angular momentum along the direction opposite to the reaction plane in the early stage of non-central heavy-ion collisions. Parton scattering is shown to polarize quarks along the same direction due to spin-orbital coupling. Such global quark polarization will lead to many observable consequences, such as left-right asymmetry of hadron spectra, global transverse polarization of thermal photons, dileptons and hadrons. Hadrons from the decay of polarized resonances will have azimuthal asymmetry similar to the elliptic flow. Global hyperon polarization is predicted within different hadronization scenarios and can be easily tested.

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Cited by 4 Pith papers

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    In boost-invariant cylindrical spin hydrodynamics, azimuthal-longitudinal coupling in the spin tensor produces nonzero total polarization only via the longitudinal magnetic component coupled to the azimuthal electric ...

  4. Spin dynamics and polarization in relativistic systems: recent developments

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    The review summarizes developments in spin hydrodynamics, polarization from spin-vorticity coupling, pseudo-gauge freedom, and heavy-flavor spin dynamics in relativistic systems.