Showing 2002 · hep-phShow all

20 papers · 2 filters

hep-ph2002★ 23 cited

Virtual Compton scattering in the generalized Bjorken region and positivity bounds on generalized parton distributions

P. V. Pobylitsa

The positivity bounds on generalized parton distributions are derived from the positivity properties of the absorptive part of the amplitude of the virtual Compton scattering in th…

hep-ph2002★ 10 cited

Power corrections to the space-like transition form factor F_{η^{\prime}g^{*}g^{*}}(Q^2,ω)

S. S. Agaev, N. G. Stefanis

Employing the standard hard-scattering approach (HSA) in conjunction with the running-coupling (RC) method, the latter joined with the infrared-renormalon calculus, we compute powe…

hep-ph2002★ 4 cited

Strange vector form factors in the context of the SAMPLE, A4, HAPPEX and G0 experiments

Antonio Silva, Hyun-Chul Kim, Klaus Goeke

We present the recent results of the strange vector form factors of the nucleon within the framework of the SU(3) chiral quark-soliton model. We compare our results with the recent…

hep-ph2002★ 12 cited

Novel hard semiexclusive processes and color singlet clusters in hadrons

L. Frankfurt, M. V. Polyakov, M. Strikman +2

Hard scattering to a three cluster final state is suggested as a method to probe configurations in hadrons containing small size color singlet cluster and a residual quark-gluon sy…

hep-ph2002★ 108 cited

Gluon-Exchange in Spin-Dependent Fragmentation

A. Metz

The fragmentation of an unpolarized quark into a transversely polarized spin-1/2 particle is studied in the framework of a simple model. Special attention is payed to the gluon exc…

hep-ph2002★ 418 cited

Generalized parton distributions and strong forces inside nucleons and nuclei

M. V. Polyakov

We argue that generalized parton distributions (GPDs), accessible in hard exclusive processes, carry information about the spatial distribution of forces experienced by quarks and…