National Technical Reports Library

The National Technical Information Service acquires, indexes, abstracts, and archives the largest collection of U.S. government-sponsored technical reports in existence. The NTRL offers online, free and open access to these authenticated government technical reports. Technical reports and documents in its repository may be available online for free either from the issuing federal agency, the U.S. Government Publishing Office’s Federal Digital System website, or through search engines.

Details

Transition Form Factors of the Proton at Higher Momentum Transfer.

DE2004829659

Publication Date	2004
Personal Author	Stoler, P.
Page Count	14
Abstract	Recently there hae been promising developments in bridging the high and low Q(sup 2) extremes with a QCD quark-parton description of exclusive reactions. In this approach the perturbative hard part of the reaction, which is calculable, is isolated from the non-perturbative soft, physics which is parameterized in terms of off-forward parton distributions (OFPD), generically illustrated in a figure. An attractive aspect of this is that the same OFPD's are common to different exclusive reactions which involve the same set of hadrons. In the limit of forward scattering it is shown that the OFPD become the usual inclusive parton distribution functions, as illustrated for the case of virtual Compton scattering in a figure. A figure illustrates how they are related specifically to baryon elastic and transition form factors.
Keywords	Protons Momentum transfer Baryons Compton effect Distribution effects Form factors Hadrons Partons Quantum chromodynamics Scattering
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Rensselaer Polytechnic Inst., Troy, NY.; Department of Energy, Washington, DC.
Supplemental Notes	Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200516

Transition Form Factors of the Proton at Higher Momentum Transfer.

Transition Form Factors of the Proton at Higher Momentum Transfer.
DE2004829659

Publication Date	2004
Personal Author	Stoler, P.
Page Count	14
Abstract	Recently there hae been promising developments in bridging the high and low Q(sup 2) extremes with a QCD quark-parton description of exclusive reactions. In this approach the perturbative hard part of the reaction, which is calculable, is isolated from the non-perturbative soft, physics which is parameterized in terms of off-forward parton distributions (OFPD), generically illustrated in a figure. An attractive aspect of this is that the same OFPD's are common to different exclusive reactions which involve the same set of hadrons. In the limit of forward scattering it is shown that the OFPD become the usual inclusive parton distribution functions, as illustrated for the case of virtual Compton scattering in a figure. A figure illustrates how they are related specifically to baryon elastic and transition form factors.
Keywords	Protons Momentum transfer Baryons Compton effect Distribution effects Form factors Hadrons Partons Quantum chromodynamics Scattering
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Rensselaer Polytechnic Inst., Troy, NY.; Department of Energy, Washington, DC.
Supplemental Notes	Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200516