Coherent deeply virtual Compton scattering on helium-4 beyond the leading twist approximation

@misc{martinezfernandez2026coherent,
  title = {{Coherent deeply virtual Compton scattering on helium-4 beyond the leading twist approximation}},
  author = {V. Martínez-Fernández and B. Pire and P. Sznajder and J. Wagner},
  howpublished = {arXiv},
  year = {2026},
  month = sep,
  doi = {10.48550/arxiv.2609.22405},
  eprint = {2609.22405},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2609.22405},
}

TY  - UNPB
TI  - Coherent deeply virtual Compton scattering on helium-4 beyond the leading twist approximation
AU  - V. Martínez-Fernández
AU  - B. Pire
AU  - P. Sznajder
AU  - J. Wagner
PY  - 2026
DA  - 2026/09/18
PB  - arXiv
DO  - 10.48550/arxiv.2609.22405
UR  - https://arxiv.org/abs/2609.22405
AB  - Coherent hard exclusive reactions on light nuclei offer access to their quark and gluon structure and provide a framework for three-dimensional nuclear tomography. We analyze deeply virtual Compton scattering on a helium-4 target, including leading-twist contributions as well as kinematical twist-3 and twist-4 effects. We present numerical estimates of cross sections and asymmetries for kinematic regimes relevant to JLab experiments. We emphasize the importance of next to leading order (NLO) and kinematical twist 3 and 4 contributions to interpret data in the JLab kinematics. We deduce a first tomographic image of quarks and gluons in the helium-4 nucleus.
ER  -