A process-independent framework shows scalar hyperon-pair correlations leave density-matrix degeneracy, requiring transverse and longitudinal tensor components plus anisotropy A_C to claim entanglement.
Asymmetries in polarized hadron production in e^+e^- annihilation up to order 1/Q
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abstract
We present the results of the tree-level calculation of inclusive two-hadron production in electron-positron annihilation via one photon up to subleading order in 1/Q. We consider the situation where the two hadrons belong to different, back-to-back jets. We include polarization of the produced hadrons and discuss azimuthal dependences of asymmetries. New asymmetries are found, in particular there is a leading cos(2 phi) asymmetry, which is even present when hadron polarization is absent, since it arises solely due to the intrinsic transverse momenta of the quarks.
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hep-ph 2years
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Collins asymmetries for pion-in-jet production at the EIC are calculated in LO and Weizsacker-Williams approximations, showing quark-channel dominance and clearer access to sea-quark transversity.
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