Aug 8 – 13, 2022
Hörsaalzentrum Poppelsdorf
Europe/Berlin timezone

Update on flavor diagonal nucleon charges

Aug 12, 2022, 5:40 PM
20m
CP1-HSZ/Ground-0.010 - HS2 (CP1-HSZ)

CP1-HSZ/Ground-0.010 - HS2

CP1-HSZ

450
Oral Presentation Hadron Structure Hadron Structure

Speaker

Sungwoo Park (Jefferson lab)

Description

We present an update on the calculation of flavor diagonal nucleon axial, scalar and tensor charges on eight 2+1+1-flavor MILC HISQ ensembles using Wilson-clover fermions. We discuss the excited state contributions (ESC) in the connected and disconnected diagrams, nonperturbative calculation of the renormalization constants and flavor mixing in the RI-sMOM scheme. These data are extrapolated to the physical point using a simultaneous chiral-continuum-finite-volume fit.

Primary authors

Sungwoo Park (Jefferson lab) Dr Tanmoy Bhattacharya (Los Alamos National Laboratory) Dr Rajan Gupta (Los Alamos National Laboratory) Prof. Huey-Wen Lin (Michigan State University) Dr Santanu Mondal (Los Alamos National Laboratory) Dr Boram Yoon (Los Alamos National Laboratory)

Presentation materials