Saturation effects in diffractive deep inelastic scattering

@misc{penttala2026saturation,
  title = {{Saturation effects in diffractive deep inelastic scattering}},
  author = {Jani Penttala and Christophe Royon and Jarno Vierros},
  howpublished = {arXiv},
  year = {2026},
  month = sep,
  doi = {10.48550/arxiv.2609.01163},
  eprint = {2609.01163},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2609.01163},
}

TY  - UNPB
TI  - Saturation effects in diffractive deep inelastic scattering
AU  - Jani Penttala
AU  - Christophe Royon
AU  - Jarno Vierros
PY  - 2026
DA  - 2026/09/01
PB  - arXiv
DO  - 10.48550/arxiv.2609.01163
UR  - https://arxiv.org/abs/2609.01163
AB  - We study the production of c and b quarks in photon-induced processes as a probe of gluon saturation, with a focus on the high-energy region accessible in ultra-peripheral collisions (UPCs) at the LHC. We compare predictions for inclusive and diffractive heavy quark production with and without saturation effects by using the nonlinear Balitsky--Kovchegov and the linear Balitsky--Fadin--Kuraev--Lipatov equations for the evolution of the dipole amplitude. The percentage of coherent diffractive events is predicted to be 20% in the saturation model, which is approximately twice as large as predictions based on parton distribution functions and shadowing. This indicates that measurements of diffractive heavy quark production in UPCs may provide a sensitive probe for distinguishing linear and nonlinear regimes of quantum chromodynamics.
ER  -