3 papers
hep-ph2026
On the Two -Factors in the Small- Shockwave Formalism
Yuri V. Kovchegov, M. Gabriel Santiago, Huachen Sun
There are two -factors frequently used in the phenomenology of exclusive processes at small values of the Bjorken variable. One -factor takes into account the effects of…
hep-ph2025
Unpolarized GPDs at small and non-zero skewness
Yuri V. Kovchegov, M. Gabriel Santiago, Huachen Sun
We study the small- asymptotics of unpolarized generalized parton distributions (GPDs) and generalized transverse momentum distributions (GTMDs). Unlike the previous works in th…
hep-ph2023
Novel Cross Section Ratios as Possible Signals of Saturation in UPCs
Yuri V. Kovchegov, Huachen Sun, Zhoudunming Tu
We propose new cross section ratios in ultra-peripheral AA and A collisions (UPCs) as a potential experimental signal of saturation physics. We consider the ratio of e…