October 31, 2023 to November 4, 2023
Europe/Athens timezone

Pion and kaon transverse momentum-dependent parton distribution functions in lattice QCD

Not scheduled


Jacopo Tarello (The Cyprus Institute)


We evaluate the transverse momentum-dependent parton distribution functions for the pion and kaon by computing the quasi-beam functions with asymmetric staple-shaped quark bilinear operators and combine it with the soft function and Collins-Soper kernels. These are computed within lattice QCD using an $\mathcal{N}_f= 2 + 1 + 1$ twisted mass fermion ensemble of lattice size $24^3 \times 48$, lattice spacing $a= 0.093$ fm, pion mass of $350$ MeV and kaon mass of $554$ MeV. We study the mixing pattern of the extended operators composed of an asymmetric staple-shaped Wilson line through symmetry arguments and implement non-perturbative renormalization within both the RI/MOM scheme and a variant scheme, where the renormalization factors are computed at short distances.

Primary authors

Mr Aniket Sen (Rheinische Friedrich-Wilhelms-Universit ̈at Bonn) Constantia Alexandrou (University of Cyprus & Cyprus Institute) Fernanda Steffens (DESY - Zeuthen) Gregoris Spanoudes (University of Cyprus) Jacopo Tarello (The Cyprus Institute) Krzysztof Cichy (Adam Mickiewicz University, Faculty of Physics) Martha Constantinou (Temple U.) Simone Bacchio

Presentation materials

There are no materials yet.