Sep 7 – 11, 2026
Europe/Madrid timezone

Photoproduction of Baryons

Not scheduled
20m

Speaker

Vincent Mathieu (University of Barcelona)

Description

The study of exclusive photoproduction reactions provides critical insights into the spectrum and structure of excited nucleons. In this contribution, we present an analysis of the photoproduction of vector mesons and hyperons, specifically focusing on the $\gamma p \to \rho^-\Delta^{++}$ and $\gamma p \to K^{*+}\Lambda$ channels at the GlueX experiment. Utilizing a linearly polarized tagged photon beam, we extract the Spin Density Matrix Elements (SDMEs) and relevant cross sections across a range of kinematic conditions. We will discuss the complete theoretical and experimental formalism required to study both meson and baryon resonances simultaneously within these kinematic distributions. Furthermore, we will demonstrate how the information encoded in the tagged beam polarization allows for the separation of natural and unnatural parity exchange mechanisms, offering deeper constraints on the underlying physics factors and resonance contributions.

Author

Vincent Mathieu (University of Barcelona)

Presentation materials

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