Coherent deeply virtual Compton scattering on He 4 beyond leading power
Abstract
Coherent hard exclusive reactions on light nuclei provide access to their quark and gluon structure and enable three-dimensional tomography of these complex systems. We study deeply virtual Compton scattering on a helium-4 target, including both kinematic twist-3 and twist-4 corrections, as well as next-to-leading-order corrections to the twist-2 amplitude in the strong coupling α s . We show that these contributions are crucial for achieving a precise description of the data and, as a result, obtain the first tomographic image of the helium-4 nucleus at the quark-gluon level.
Fields of Study & Subjects
Quantum
superfluid
helium dynamics
Quantum Chromodynamics and Particle Interactions
Atomic and Subatomic Physics Research
Publication details
- Journal / source
- Physical Review C
- Publisher
- American Physical Society (APS)
- Volume
- 114
- Issue
- 3
- Publication date
- 28 July 2026
- Language
- EN