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Azimuthal asymmetries in semi-inclusive DIS with polarized beam and/or target and their nuclear dependences
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Azimuthal asymmetries in semi-inclusive DIS with polarized beam and/or target and their nuclear dependences
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Using the formalism obtained from collinear expansion, we calculate the differential cross section and azimuthal asymmetries in semi-inclusive deeply inelastic lepton-nucleon (nucleus) scattering process $e^-+N (A) \to e^-+q+X$ with both polarized beam and polarized target up to twist-3. We derive the azimuthal asymmetries in terms of twist-3 parton correlation functions. We simplify the results by using the QCD equation of motion that leads to a set of relationships between different twist-3 functions. We further study the nuclear dependence of azimuthal asymmetries and show that they have similar suppression factors as those in the unpolarized reactions.
Forward citations
Cited by 1 Pith paper
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Twist-3 effects in fully inclusive jet production from $e^+e^-$ annihilation
Twist-3 corrections to e+e- -> hadron + inclusive jet are derived including weak interactions, yielding two azimuthal asymmetries that can expose the Collins fragmentation function at future colliders.
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