Speaker
Description
One of the most intriguing phenomena of strong interaction is the so-called gluon saturation in nucleons and nuclei at very small value of the Bjorken-$x$. In the saturation regime, the density of partons, per unit of transverse area, in hadronic wavefunctions becomes very large leading to non-linear effects. These latter stop the strong growth of the gluon density at small-$x$ leading to a state characterized by a balancing of gluon emissions and recombinations.
With the aim of obtaining accurate theoretical predictions to test the physics of saturation, we calculate, at next-to-leading logarithmic accuracy, the cross-sections of diffractive single and di-hadron photo- or electroproduction with large $p_T$, on a nucleon or a nucleus. These new processes can be investigated at both the EIC, or, at the LHC in $p A$ and $A A$ scattering, using Ultra Peripheral Collisions (UPC).
