Confinement, Color Vortices and Nonperturbative Structures in QCD

Jul 20, 2022, 10:40 AM
Classroom 512 (APCTP)

Classroom 512


Asia Pacific Center for Theoretical Physics, Pohang, Gyeongbuk 37673, Korea


Dennis Sivers (Portland Physics Institut, University of Michigan)


Various nonperturbative aspects of quantum chromodynamics share a common feature combining orbital angular momentum with coherence at a hadronic scale. Nonperturbative fluctuations involving triplet P-zero quark-antiquark pairs play a significant role in the isospin structure of proton sea, in the flux-rupture of the Collins function, and in the nonperturbative final-state interaction leading to the Qiu-Sterman-Sivers effect. These nonperturbative dynamic effects can be studied directly using TMD fracture functions for SIDIS events with two hadrons detected in the final state.

Primary author

Dennis Sivers (Portland Physics Institut, University of Michigan)

Presentation materials