May 22 – 26, 2023
IJCLab, Orsay (FRANCE)
Europe/Paris timezone

Pseudo and quasi quark PDFs at small-x

May 23, 2023, 2:25 PM
Auditorium Joliot Curie (IJCLab, Orsay (FRANCE))

Auditorium Joliot Curie

IJCLab, Orsay (FRANCE)

15, Rue G. Clemenceau 91405 Orsay Cedex FRANCE


Giovanni Antonio Chirilli (University of Regensburg)


Pseudo- and quasi-parton distribution functions (PDFs) defined through space-like bilocal operators allow for direct access to the PDFs from first principles in lattice gauge theory. However, this formalism currently leaves the small Bjorken $x$ regime inaccessible. With the future Electron-Ion Collider in mind, it is timely to study the PDFs at small-$x$. In a previous calculation, we showed that the gluon pseudo and quasi PDFs have distinct behavior at small-$x$. It is known that the behavior of the quark distribution at small-$x$ is not directly related to that of the gluon PDF, as previous research has shown. In this talk, I will present the calculation of the quark pseudo- and quasi-PDFs in the high-energy limit, and show that they too have distinct behavior at small-$x$.

Primary author

Giovanni Antonio Chirilli (University of Regensburg)

Presentation materials