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Conformal moments of the two-loop coefficient functions in DVCS

Vladimir M. Braun1, Patrick Gotzler1,*, and Alexander N. Manashov2,1

  • *Contact author: patrick1.gotzler@physik.uni-regensburg.de
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Phys. Rev. D 113, 074005 – Published 3 April, 2026

DOI: https://doi.org/10.1103/p5rk-497z

Abstract

We develop a new technique and calculate conformal (Gegenbauer) moments of the two-loop coefficient functions in deeply virtual Compton scattering. These results are necessary for the extraction of the generalized parton distributions from the experimental data to the next-to-next-to leading order accuracy within the Mellin-Barnes approach.

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Phys. Rev. D 113, 074005– Published 3 April, 2026
  • Received 7 January 2026
  • Accepted 18 March 2026
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Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.

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