Speaker
Bolun Hu
Description
We present an ongoing lattice-QCD study of higher Mellin moments of pion and kaon parton distribution functions using the gradient-flow method. Building on previous work, we use twisted-mass ensembles with lighter pion masses and plan calculations at four lattice spacings. We investigate the flow-time dependence, continuum extrapolation, excited-state effects, and other systematic uncertainties with a more detailed analysis. Preliminary results for both the pion and kaon are expected to be presented at the conference.