XXVIII International Workshop on Deep Inelastic Scattering and Related Subjects

DIS structure functions and unintegrated PDFs with off-shell matrix elements

Mar 26, 2020, 9:54 AM

18m

Brooklyn, NY

Contributed Talk Structure Functions and Parton Densities Structure function and parton densities

Speaker

Aleksander Kusina (Institute of Nuclear Physics PAN)

Description

We compute DIS structure functions using off-shell matrix elements based on kT-factorization. The obtained results are used together with parton branching evolution and HERA data in order to fit unintegrated (transverse momentum dependent) parton distributions. This allows us to have a consistent framework where off-shellness of initial partons is treated both in parton evolution and in matrix elements. It also gives us a unique opportunity to estimate the importance of accounting for the off-shellness in matrix elements.