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Positivity Constraints for off-Forward Parton Distributions

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arxiv hep-ph/9804284 v4 pith:OPIUYYEL submitted 1998-04-14 hep-ph nucl-th

B. Pire , J. Soffer , O. Teryaev This is my paper
classification hep-phnucl-th
keywords constraintsdistributionsoff-forwardpartonpositivityallowderiveexclusive
verification ladder T0 review T1 audit T2 compute T3 formal
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Off-Forward Parton Distributions (OFPD's) are new hadronic objects which may be measured in various exclusive reactions. We derive non-trivial positivity constraints for them that should allow to get extra restrictions for model inputs.

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Cited by 4 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. Quark and gluon tomography of the helium-4 nucleus

    hep-ph 2026-05 unverdicted novelty 8.0 of 10

    Using NLO QCD calculations with twist corrections and evolution, the work delivers the first quark-gluon tomography of helium-4 via hard exclusive processes.

  2. Reconstructing the full kinematic dependence of GPDs from pseudo-distributions

    hep-lat 2026-04 unverdicted novelty 8.0 of 10

    Lattice QCD pseudo-distributions at m_π=358 MeV are inverted via multidimensional Gaussian process regression to reconstruct the full kinematic dependence of GPDs H^{u-d} and E^{u-d} while directly extracting double d...

  3. Coherent deeply virtual Compton scattering on helium-4 beyond leading power

    hep-ph 2026-04 unverdicted novelty 6.0 of 10

    Computes kinematic twist-3, twist-4 and NLO alpha_s corrections to coherent DVCS on He-4 and extracts the first 3D quark-gluon tomography of the nucleus.

  4. Coherent deeply virtual Compton scattering on helium-4 beyond leading power

    hep-ph 2026-04 unverdicted novelty 5.0 of 10

    Higher-twist and NLO corrections to DVCS on He-4 enable the first 3D parton-level tomography of the helium-4 nucleus.

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