May 22 – 26, 2023
IJCLab, Orsay (FRANCE)
Europe/Paris timezone

Deeply Virtual Compton Scattering at Next-to-Next-to-Leading Order: Singlet Case

Not scheduled
Auditorium Joliot Curie (IJCLab, Orsay (FRANCE))

Auditorium Joliot Curie

IJCLab, Orsay (FRANCE)

15, Rue G. Clemenceau 91405 Orsay Cedex FRANCE


Yao Ji


Deeply-virtual Compton scattering gives access to the generalized parton distributions that encode the information on the transverse position of quarks and gluons in the proton with dependence on their longitudinal momentum. In anticipation of the high-precision experimental data and prominent gluon contribution in a broad kinematic range from the Electron-Ion Collider, we have calculated the NNLO DVCS coefficient functions of the flavor-singlet sector associated with the dominant Compton form factors $H$ and $E$ at large energies. This calculation is crucial for bringing perturbative gluon contributions under theory control. Numerical analysis suggests the NNLO corrections to the imaginary part of $H$ are rather large.

Primary author

Yao Ji


Prof. Vladimir Braun (University of Regensburg) Mr Jakob Schoenleber (University of Regensburg)

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