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A detailed next-to-leading order QCD analysis of deeply virtual Compton scattering observables

  • Theoretical physics
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Abstract

We present a detailed next-to-leading order (NLO) leading twist QCD analysis of deeply virtual Compton scattering (DVCS) observables, for several different input scenarios, in the \(\overline{\mbox{MS}}\) scheme. We discuss the size of the NLO effects and the behavior of the observables in skewedness \(\zeta\), momentum transfer,t, and photon virtuality, \(q^2=-Q^2\). We present results on the amplitude level for unpolarized and longitudinally polarized lepton probes, and unpolarized and longitudinally polarized proton targets. We make predictions for various asymmetries and for the DVCS cross section and compare with the available data.

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Authors and Affiliations

  1. Institut für Theoretische Physik, Universität Regensburg, Universitätstr. 31, 93053, Regensburg, Germany

    A. Freund

  2. Division of Theoretical Physics, Dept. Math. Sciences, University of Liverpool, L69 3BX, Liverpool, UK

    M. McDermott

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  1. A. Freund
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  2. M. McDermott
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Correspondence to A. Freund.

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Freund, A., McDermott, M. A detailed next-to-leading order QCD analysis of deeply virtual Compton scattering observables. Eur. Phys. J. C 23, 651–674 (2002). https://doi.org/10.1007/s100520200928

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  • DOI: https://doi.org/10.1007/s100520200928

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