[RBRC seminar] One Point Charge Correlations in Deep-Inelastic Scattering

by Dr Haotian Cao (Northwestern university)

Thursday 16 Jul 2026, 12:30 → 14:30 US/Eastern

2-160 (https://bnl.zoomgov.com/j/1600983728?pwd=RAD7OLcqre7Ycsp6JfFp6HAnpyLxex.1)

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 establishes a charge-and-angle measurement paradigm for spin physics at a future Electron-Ion Collider.