Extracting the Pion Distribution Amplitude from Lattice QCD through Pseudo-Distributions - Archive ouverte HAL Accéder directement au contenu
Communication Dans Un Congrès Année : 2023

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

Daniel Kovner
  • Fonction : Auteur
Joe Karpie
  • Fonction : Auteur
Konstantinos Orginos
  • Fonction : Auteur
Anatoly Radyushkin
  • Fonction : Auteur

Résumé

The Light-Cone Distribution Amplitude (LCDA) encodes the non-perturbative information of the leading Fock component of the hadron wave function, therefore required for processes including exclusive hadron production. As the pseudo-Nambu-Goldstone boson of QCD, the nonperturbative structure of the pion is of particular interest. Progress on the Lattice QCD calculation of the pion LCDA on ${\cal O}(a)$-improved Wilson fermion ensembles at several lattice spacings is presented. Excited-state systematics are taken into account within a Bayesian Model Averaging framework. A Renormalization-Group-Invariant (RGI) ratio of matrix elements is formed for further extraction of the pion LCDA.

Dates et versions

hal-04446868 , version 1 (08-02-2024)

Identifiants

Citer

Daniel Kovner, Joe Karpie, Konstantinos Orginos, Anatoly Radyushkin, Savvas Zafeiropoulos. Extracting the Pion Distribution Amplitude from Lattice QCD through Pseudo-Distributions. 40th International Symposium on Lattice Field Theory, Jul 2023, Batavia, United States. ⟨hal-04446868⟩
3 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More