Speaker
Description
We calculate [1] the contribution from the $q\bar{q}g$ state to the small-$x$ diffractive cross section in deep inelastic scattering in the saturation regime. The obtained cross section is finite by itself and a part of the full next-to-leading order result for the diffractive structure function. We perform the calculation in exact kinematics in the eikonal limit, and show that the previously known high $Q^2$ and large $M_X^2$ results for the structure functions can be extracted from our results in the appropriate limits. We furthermore discuss the steps required to obtain the full next-to-leading order results for the structure functions.
[1] G. Beuf, H. Hänninen, T. Lappi, Y. Mulian and H. Mäntysaari,
"Diffractive deep inelastic scattering at NLO in the dipole picture: the $q \bar q g$ contribution," [arXiv:2206.13161 [hep-ph]].
