2024 Meeting on Lattice Parton Physics from Large Momentum Effective Theory (LaMET2024)

Session

Presentations

12 Aug 2024, 10:45

University of Maryland, College Park

14. LCDA moments of meson

Ji-Hao Wang (Institute of Theoretical Physics, Chinese Academy of Sciences)

12/08/2024, 10:45

We calculate the leading-twist light-cone distribution amplitude (LCDA) moments of mesons on MILC ensembles using the hyp-smeared clover action. For pseudoscalar mesons, we compute the first moments of the $K$ meson and the second moments of the $\pi$ and $K$ mesons. For vector mesons, we compute the first moments of the $K^{*}$ meson and the second moments of the $\rho$, $K^{*}$, and $\phi$ mesons.

24. Progress toward Moments of Light-Cone Distribution Amplitudes from a Heavy-Quark Operator Product Expansion

Anthony Grebe

12/08/2024, 11:05

The pseudoscalar meson light-cone distribution amplitudes (LCDAs) are essential non-perturbative inputs for a range of high-energy exclusive processes in quantum chromodynamics. I will discuss progress towards determination of the low Mellin moments of pion and kaon LCDAs -- including the fourth moment of the pion LCDA -- by the HOPE Collaboration.

28. Evolution of parton pseudo-distributions

Joseph Karpie

12/08/2024, 11:35

Critical to the understanding of parton structure is the scale dependence of the distributions. By compared data at different scales one can test the validity of the factorization approximation. Typically the universal short distance scale dependence of the object is calculated in perturbation theory. We propose a method for calculating the scale dependence non-perturbatively from lattice QCD...