One-loop corrections and all order factorization in deeply virtual Compton scattering

Journal Article · Sun Nov 01 04:00:00 EST 1998 · Physical Review, D

DOI:https://doi.org/10.1103/PhysRevD.58.094018· OSTI ID:662339

Ji, X; Osborne, J ^[1]

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1. Department of Physics, University of Maryland, College Park, Maryland 20742 (United States)

We calculate the one-loop corrections to a general off-forward deeply virtual Compton process at leading twist for both parton helicity-dependent and independent cases. We show that the infrared divergences can be factorized entirely into off-forward parton distributions, even when one of the two photons is on shell. We argue that this property persists to all orders in perturbation theory. We obtain the next-to-leading order Wilson coefficients for the general leading-twist expansion of the product of two electromagnetic currents in the {ovr MS} scheme. {copyright} {ital 1998} {ital The American Physical Society}

• OSTI ID: 662339
• Journal Information: Physical Review, D, Journal Name: Physical Review, D Journal Issue: 9 Vol. 58; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
COMPTON EFFECT
HELICITY
PARTONS
PERTURBATION THEORY
PHOTONS
QUANTUM CHROMODYNAMICS
VIRTUAL PARTICLES