Crossing and Radon Tomography for Generalized Parton Distributions

Details Crossing and Radon Tomography for Generalized Parton Distributions Crossing and Radon Tomography for Generalized Parton Distributions

2001-02-25

arxiv.org/abs/hep-ph/0102303v2

Phys.Lett. B510 (2001) 125-132

Physics

High Energy Physics

High Energy Physics - Phenomenology

LaTeX, 10 pages

Scientific paper

10.1016/S0370-2693(01)00564-0

The crossing properties of the matrix elements of non-local operators, parameterized by Generalized Parton Distribution, are considered. They are especially simple in terms of the Double Distributions which are common for the various kinematical regions. As a result, Double Distributions may be in principle extracted from the combined data in these regions by making use of the inverse Radon transform, known as a standard method in tomography. The ambiguities analogous to the ones for the vetor potential in the two-dimensional magneto-statics are outlined. The possible generalizations are discussed.

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