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Apr 12 – 14, 2023
Minneapolis, Minnesota
US/Central timezone

Extracting the Pion Distribution Amplitude from Lattice QCD through Pseudo-Distributions

Apr 13, 2023, 3:20 PM
20m
Orchestra D

Orchestra D

Speaker

Daniel Kovner (William & Mary)

Description

The light-cone distribution amplitude (DA) encodes non-perturbative information of the wave function of fast moving hadrons. In particular, cross sections for high energy exclusive processes factorize into the pion DA, directly probing the internal structure of the pion, as well as providing constraints on proton structure via Deeply Virtual Meson Production. In this talk, I will present the extraction of the pion DA from three Nf=2 ensembles with lattice spacings in the range 0.0483-0.0749 fm at a pion mass of ~440 MeV. The pseudo-distribution formalism is employed to extract the DA from the renormalized lattice matrix elements.

Presentation materials