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Apr 12 – 14, 2023
Minneapolis, Minnesota
US/Central timezone

Numerical Study of Twist-3 Longitudinal-Transverse Double-Spin Asymmetries: a Probe of Quark-Gluon-Quark Correlations in Hadrons

Apr 14, 2023, 8:30 AM
20m
Orchestra B

Orchestra B

Speaker

Brandon Bauer (Lebanon Valley College)

Description

In this talk I will focus on the asymmetry ALT involving a longitudinally polarized electron or proton colliding with a transversely polarized proton, with a single pion, photon, or jet detected in the final state. We provide rigorous numerical predictions for Jefferson Lab, COMPASS, RHIC, and the future Electron-Ion Collider using recent extractions of the parton distribution functions (PDFs) and fragmentation functions (FFs) involved in calculating ALT. Uncertainty bands are generated through a bootstrapping method that randomly selects PDF/FF replicas with replacement until the computation converges. Through these predictions we hope to motivate future measurements that can help us gain more insight into the quark-gluon-quark interactions that occur inside of hadrons as well as dynamical quark mass generation in QCD.

Co-authors

Daniel Pitonyak (Lebanon Valley College) Mr Cody Shay

Presentation materials