Speaker
Michael Fucilla
(Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405, Orsay, France)
Description
Deeply Virtual Meson Production (DVMP) represents a key channel for investigating BFKL dynamics and gluon saturation within nucleons and nuclei. Describing many DVMP observables requires a treatment beyond leading power. We present a systematic framework to address next-to-leading power corrections at small-$x$, including the saturation regime, and apply it to calculate the $\gamma^{*} \rightarrow M (\rho, \phi, \omega)$ impact factor, with both the incoming photon and outgoing meson carrying arbitrary polarizations. This is particularly relevant since the saturation scale at modern colliders, while entering a perturbative regime, is not large enough to prevent higher-twist effects from being sizable.
Authors
Lech Szymanowski
(National Centre for Nuclear Research)
Michael Fucilla
(Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405, Orsay, France)
Renaud BOUSSARIE
(CPHT, CNRS, Ecole polytechnique, IP Paris)
Dr
Samuel Wallon
