English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

We outline the twist-two analysis of deeply virtual Compton scattering(DVCS)within the conformal partial wave expansion of the amplitude, representedas a Mellin--Barnes integral. The complete next-to-leading order results,including evolution, are obtained in the MS and a conformal factorizationscheme. Within the latter, exploiting conformal symmetry, the radiativecorrections are evaluated up to next-to-next-to-leading order. Using a newproposed parameterization for GPDs, we study the convergence of perturbationtheory and demonstrate for H1 and ZEUS measurements that our formalism issuitable for a fitting procedure of DVCS observables. We comment on a recentclaim of a breakdown of collinear factorization and show that a Regge-inspiredQ^2 scaling law is ruled out by small x_Bj DVCS data.

Fitting DVCS at NLO and beyond