On the D-term of the nucleon generalized parton distributions

Details On the D-term of the nucleon generalized parton distributions On the D-term of the nucleon generalized parton distributions

2007-01-09

arxiv.org/abs/hep-ph/0701057v2

Phys.Lett.B648:181-185,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 pages, 2 eps-figures, small improvements, version to appear in Phys. Lett. B

Scientific paper

10.1016/j.physletb.2007.03.013

It is known that some of the deeply-virtual-Compton-scattering observables, for instance, the beam-charge asymmetry in the hard electroproduction of real photons on the nucleon, are extremely sensitive to the magnitude of D-term appearing in the parameterization of the generalized parton distributions. We report a theoretical analysis of both the isoscalar and isovector parts of the nucleon D-term within the framework of the chiral quark soliton model, without recourse to the derivative expansion type approximation used in previous works.

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