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On the D-term of the nucleon generalized parton distributions
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On the D-term of the nucleon generalized parton distributions
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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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Cited by 1 Pith paper
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Flavor decomposition of the gravitational form factors and mechanical structure of the proton
In the chiral quark-soliton model the up quark dominates proton mass and spin while the strange quark contributes sizably to the D-term, with twist-4 terms required for mechanical stability.
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