Jul 22 – 28, 2018
Kellogg Hotel and Conference Center
EST timezone

Proton spin decomposition

Jul 27, 2018, 10:00 AM
Big Ten A (Kellogg Hotel and Conference Center)

Big Ten A

Kellogg Hotel and Conference Center

219 S Harrison Rd, East Lansing, MI 48824
Plenary Hadron Structure Plenary


Yibo Yang (Michigan State University)


We calculate the intrinsic quark and gluon spin contribution to the total proton spin using overlap fermions on Domain-wall ensembles. We find that the total quark spin, with the axial Ward identity satisfied, is ~40%, and the glue spin contribution is ~50% if the matching procedure in LaMET is neglected. The imperative non-perturbative renormalization to obtain the quark and glue angular momentum fractions will be also introduced in the talk.

Primary author

Yibo Yang (Michigan State University)


Jian Liang (University of Kentucky) Prof. Keh-Fei Liu (University of Kentucky) Raza Sufian (Jef) Dr Terrence Draper (University of Kentucky)

Presentation materials