Backward DVCS and Proton to Photon Transition Distribution Amplitudes

Abstract

We analyse deeply-virtual Compton scattering on a proton target, gamma* P -> P' gamma in the backward region and in the scaling regime. We define the transition distribution amplitudes which describe the proton to photon transition. Model-independent predictions are given to test this description, for current or planned experiments at JLab or by Hermes.

8 pages, 3 figures, LaTeX, uses espcrc1.sty (included). Invited talk at the Vth International Conference on Perspectives in Hadronic Physics, 22-26 May 2006, ICTP, Trieste, Italy

References in corpus (10)

• Nonforward Parton Distributions
• Scaling Limit of Deeply Virtual Compton Scattering
• Higher-Twist Distribution Amplitudes of the K Meson in QCD
• Symmetries and structure of skewed and double distributions
• Higher Twist Distribution Amplitudes of the Nucleon in QCD
• QCD analysis of bar p N -> gamma* pi in the scaling limit
• Hadron annihilation into two photons and backward dVCS in the scaling regime of QCD
• Exclusive meson pair production in gamma* gamma scattering at small momentum transfer
• QCD factorizations in gamma* gamma* -> rho rho
• Hard exclusive reactions and hadron structure

Cited by in corpus (14)

• Hard exclusive electroproduction of a pion in the backward region
• Parton content of the nucleon from distribution amplitudes and transition distribution amplitudes
• Transition distribution amplitudes and hard exclusive reactions with baryon number transfer
• Progress and Opportunities in Backward angle (u-channel) Physics
• QCD description of backward vector meson hard electroproduction
• Strong Interaction Physics at the Luminosity Frontier with 22 GeV Electrons at Jefferson Lab
• Enhancement effects in exclusive $\pi \pi$ and $\rho \pi$ production in ${\gamma }^{\ast }\gamma$ scattering
• Backward timelike Compton scattering to decipher the photon content of the nucleon
• Spin Observables in Transition-Distribution-Amplitude Studies
• Transition Distribution Amplitudes for gamma* gamma collisions
• Backward-angle Exclusive pi0 Production above the Resonance Region
• Generalized Parton Distributions of Pions. Spin Structure of Hadrons
• Virtual Compton Scattering and Neutral Pion Electroproduction in the Resonance Region up to the Deep Inelastic Region at Backward Angles
• On the physical Relevance of the Study of gamma* gamma -> pi0 pi0 at small t and large Q2