8–13 Jun 2025
America/Winnipeg timezone
Welcome to the 2025 CAP Congress Program website! / Bienvenue au siteweb du programme du Congrès de l'ACP 2025!

(POS-24) From Spin to Structure: Beam Spin Asymmetry and the Strong Force

10 Jun 2025, 18:00
2m
Poster not-in-competition (Graduate Student) / Affiche non-compétitive (Étudiant(e) du 2e ou 3e cycle) Nuclear Physics / Physique nucléaire (DNP-DPN) DNP Poster Session & Student Poster Competition | Session d'affiches DPN et concours d'affiches étudiantes (2)

Speaker

Alicia Postuma (University of Regina)

Description

The KaonLT experiment probes hadron structure by measuring deep exclusive meson production reactions at Jefferson Lab. A set of high momentum, high resolution spectrometers in Hall C allow for precision measurements from which form factors and other observables can be extracted. One possible measurement is the beam spin asymmetry, from which is extracted a polarized interference cross-section ratio $\sigma_{LT’}/\sigma_0$. In this work, $\sigma_{LT’}/\sigma_0$ was extracted from exclusive pion production, and results are compared to previous data and predictions from leading QCD models. This poster will present final results from this analysis, and discuss what the results imply about the structure of the proton.

Keyword-1 QCD
Keyword-2 Hadrons

Author

Alicia Postuma (University of Regina)

Presentation materials

There are no materials yet.