Pseudo and quasi quark PDF in the BFKL approximation
Giovanni Chirilli (Departamento de Física de Partículas and IGFAE, Universidade de Santiago de Compostela, Santiago de Compostela, Galicia, 15782, Spain)
I examine the high-energy behavior of the Ioffe-time distribution for the quark bi-local space-like separated operator using the high-energy operator product expansion. These findings have significant implications for lattice calculations, which require extrapolation for large Ioffe-time values. I perform an explicit Fourier transform for both the pseudo-PDF and quasi-PDF, and investigate their behavior within the first two leading twist contributions.