Phys. Rev. D 69, 051501(R) (2004) [4 pages]Generalized parton distributions at x⃗1
Generalized parton distributions at large x are studied in the perturbative QCD approach. As x⃗1 and at finite t, there is no t dependence for the GPDs which means that the active quark is at the center of the transverse space. We also obtain the power behavior Hqπ(x,ξ,t)∼(1-x)2/(1-ξ2) for the pion, Hq(x,ξ,t)∼(1-x)3/(1-ξ2)2 and Eq(x,ξ,t)∼(1-x)5/(1-ξ2)3f(ξ) for the nucleon, where f(ξ) represents the additional dependence on ξ. © 2004 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevD.69.051501
DOI:
10.1103/PhysRevD.69.051501
PACS:
12.38.Bx, 13.60.Fz, 14.20.Dh
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