A study of the pion and the kaon TMDPDFs in twisted mass lattice QCD
C. Alexandrou, S. Bacchio, K. Cichy, M. Constantiou, X. Feng, K. Hadjiyiannakou, K. Jansen, C. Liu, A. Sen, G. Spanoudes, F. Steffens and J. Tarello*
Pre-published on:
January 04, 2023
Published on:
April 06, 2023
Abstract
We compute the pion and kaon matrix elements that yield the transverse-momentum-dependent parton distribution functions. We use an $N_f=2+1+1$ twisted mass fermion ensemble of lattice size $24^3 x 48$, lattice spacing $a=0.093$ fm, and a pion mass of $350$ MeV. We employ momentum smearing to improve the signal of the boosted pion and kaon states. We also study the mixing pattern of the extended operators with an asymmetric Wilson staple under renormalization and implement an RI/MOM scheme for the non-perturbative renormalization.
DOI: https://doi.org/10.22323/1.430.0273
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