Higher twist distribution amplitudes of the nucleon in QCD Academic Article

abstract

• We present the first systematic study of higher-twist light-cone distribution amplitudes of the nucleon in QCD. We find that the valence three-quark state is described at small transverse separations by eight independent distribution amplitudes. One of them is leading twist-3, three distributions are twist-4 and twist-5, respectively, and one is twist-6. A complete set of distribution amplitudes is constructed, which satisfies equations of motion and constraints that follow from conformal expansion. Nonperturbative input parameters are estimated from QCD sum rules. 2000 Elsevier Science B.V.

authors

• Fries, Rainer

published proceedings

• NUCLEAR PHYSICS B

author list (cited authors)

• Braun, V., Fries, R. J., Mahnke, N., & Stein, E.

citation count

• 130

complete list of authors

• Braun, V||Fries, RJ||Mahnke, N||Stein, E

publication date

• November 2000

publisher

• Elsevier  Publisher

published in

• Nuclear Physics B  Journal

keywords

• Distribution Amplitudes
• Nucleon
• Power Corrections
• Qcd

Digital Object Identifier (DOI)

• 10.1016/S0550-3213(00)00516-2

start page

• 381

end page

• 409

volume

• 589

issue

• 1-2

URL

• http://dx.doi.org/10.1016/s0550-3213(00)00516-2