Published April 1, 2002
| Version v1
Journal article
Next-to-leading order QCD analysis of deeply virtual Compton scattering amplitudes
Creators
- 1. Division of Theoretical Physics, Department of Mathematical Sciences, University of Liverpool, Liverpool, L69 3BX (United Kingdom)
- 2. Institut fuer Theoretische Physik, University of Regensburg, Universitaetstrasse 31, 93053 Regensburg (Germany)
Description
We present a next-to-leading order (NLO) QCD analysis of unpolarized and polarized deeply virtual Compton scattering (DVCS) amplitudes, for two different input scenarios, in the MS scheme. We illustrate and discuss the size of the NLO effects and the behavior of the amplitudes in skewedness, ζ, and photon virtuality, Q2. In the unpolarized case, at fixed Q2, we find a remarkable effective power-law behavior in ζ, akin to Regge factorization, over several orders of magnitude in ζ. We also quantify the ratio of real to imaginary parts of the DVCS amplitudes and their sensitivity to changes of the factorization scale
Additional details
Identifiers
- DOI
- 10.1103/PhysRevD.65.074008;
- arXiv
- arXiv:hep-ph/0106319v3;
Publishing Information
- Journal Title
- Physical Review. D, Particles Fields
- Journal Volume
- 65
- Journal Issue
- 7
- Journal Page Range
- p. 074008-074008.12
- ISSN
- 0556-2821
- CODEN
- PRVDAQ
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 35043645
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Resource subtype / Literary indicator
- Numerical Data
- Descriptors DEI
- COMPTON EFFECT; FACTORIZATION; INCLUSIVE INTERACTIONS; INELASTIC SCATTERING; PARTICLE PRODUCTION; PARTON MODEL; PERTURBATION THEORY; POLARIZATION; QUANTUM CHROMODYNAMICS; RADIATIVE CORRECTIONS; SCATTERING AMPLITUDES; THEORETICAL DATA
- Descriptors DEC
- AMPLITUDES; BASIC INTERACTIONS; COMPOSITE MODELS; CORRECTIONS; DATA; ELASTIC SCATTERING; ELECTROMAGNETIC INTERACTIONS; FIELD THEORIES; INFORMATION; INTERACTIONS; MATHEMATICAL MODELS; NUMERICAL DATA; PARTICLE INTERACTIONS; PARTICLE MODELS; QUANTUM FIELD THEORY; SCATTERING
Optional Information
- Notes
- (c) 2002 The American Physical Society