Diffractive deep inelastic scattering in the dipole picture: the qqg contribution in exact kinematics

2025/10/28 by Kaushik, Abhiram, Mäntysaari, Heikki, Penttala, Jani · 1 citation
#FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Nuclear Theory (nucl-th)

paper · doi:10.48550/arxiv.2510.24171

Abstract

We compute the qqg contribution to the diffractive structure functions in high-energy deep inelastic scattering. The obtained result corresponds to a finite part of the next-to-leading-order contribution to the diffractive cross section. Previous phenomenological applications have included this contribution only in the high-Q² or high-M_X² limits in the case of a soft gluon, and we numerically demonstrate that these existing estimates do not provide a good approximation for the full qqg contribution. Furthermore, we demonstrate that in addition to the soft gluon contribution, there is an equally important soft quark contribution to the diffractive structure functions at high Q².

Citations

• Initial condition for the Balitsky-Kovchegov equation at next-to-leading order
• Effective theories for nuclei at high energies
• TMD factorisation for diffractive jets in photon-nucleus interactions
• Diffractive deep inelastic scattering at NLO in the dipole picture
• Gluon dipole factorisation for diffractive dijets
• Science Requirements and Detector Concepts for the Electron-Ion Collider: EIC Yellow Report
• The Large Hadron–Electron Collider at the HL-LHC
• Diffractive photon dissociation in the saturation regime

Cited by

• Determination of the initial condition for the Balitsky-Kovchegov equation with transformers

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