The Off-forward Quark-Quark Correlation Function
arXiv:hep-ph/0609085 · doi:10.1103/PhysRevD.74.054037
Abstract
The properties of the non-forward quark-quark correlation function are examined. We derive constraints on the correlation function from the transformation properties of the fundamental fields of QCD occurring in its definition. We further develop a method to construct an ansatz for this correlator. We present the complete leading order set of generalized parton distributions in terms of the amplitudes of the ansatz. Finally we conclude that the number of independent generalized parton helicity changing distributions is four.
Accepted for publication in Physical Review D
References in corpus (6)
- Leading-twist Single-transverse-spin asymmetries: Drell-Yan and Deep-Inelastic Scattering
- Measurement of the Beam-Spin Azimuthal Asymmetry Associated with Deeply-Virtual Compton Scattering
- Observation of exclusive DVCS in polarized electron beam asymmetry measurements
- Generalized parton distributions with helicity flip
- Measurement of Deeply Virtual Compton Scattering at HERA
- Single-spin azimuthal asymmetry in exclusive electroproduction of pi^+ mesons