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

Pion polarizability from four-point functions in lattice QCD

Aug 12, 2022, 3:10 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

Frank Lee (George Washington University)

Description

We study the electric polarizability of a charged pion from four-point functions in lattice QCD as an alternative to the background field method. We show how to evaluate the correlation functions under special kinematics to access the polarizability. The elastic form factor (charge radius) is needed in the method which can be obtained from the same four-point functions at large current separations. Preliminary results from the connected quark-line diagrams will be presented.

Primary author

Frank Lee (George Washington University)

Co-authors

Prof. Andrei Alexandru (George Washington University) Christopher Culver (University of Liverpool) Walter Wilcox (Baylor University)

Presentation materials