Speaker
Haotian Cao
(Northwestern University)
Description
In this talk, I will present a charge correlation observable in deep-inelastic scattering, defined as the charge deposit measured at a fixed polar angle relative to the incoming proton. Using soft-collinear effective theory, we derive factorization theorems for both the target and current fragmentation regions. In the forward limit, the nucleon charge correlator encodes detailed nucleon structure, while in the back-to-back limit the observable reduces to standard TMD factorization. This provides a natural extension of nucleon energy correlators to the study of charge flow.
Author
Haotian Cao
(Northwestern University)
Co-author
Frank Petriello
(Northwestern University)