Revisiting model relations between T-odd transverse-momentum dependent parton distributions and generalized parton distributions

Abstract

We revisit the connection between generalized parton distributions in impact parameter space and T-odd effects in single spin asymmetries of the semi-inclusive deep inelastic process. We show that nontrivial relations can be established only under very specific conditions, typically realized only in models that describe hadrons as two-body bound systems and involving a helicity-conserving coupling between the gauge boson and the spectator system. Examples of these models are the the scalar-diquark spectator model or the quark-target model for the nucleon, and relativistic models for the pion at the lowest order in the Fock-space expansion.

arXiv comment15 pages, 2 figures, 1 table, v2: list of references has been corrected

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Cited by in corpus (11)

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• Hunting BFKL in semi-hard reactions at the LHC
• The three-dimensional distribution of quarks in momentum space
• Generalized parton distributions and spin structures of light mesons from a light-front Hamiltonian approach
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• Potential linear and angular momentum in the scalar diquark model
• Tomography of the Rho meson in the QCD Instanton Vacuum: Transverse Momentum Dependent Parton Distribution Functions
• Role of higher twist distributions in the tomography of proton
• Relations between generalized parton distributions and transverse momentum dependent parton distributions