Longitudinal quark polarization in transversely polarized nucleons
Abstract
Accounting for transverse momenta of the quarks, a longitudinal quark spin asymmetry exists in a transversely polarized nucleon target. The relevant leading quark distribution g1T(x,kT2) can be measured in the semi-inclusive deep-inelastic scattering. The average kT2 weighted distribution function g(1)1T can be obtained directly from the inclusive measurement of g2.
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