19-21 noviembre 2025
Europe/Madrid timezone

\eta\pi phase shift determination from \eta^{\prime}->\eta\pi\pi experimental data

19 nov. 2025 15:00
15m
Talk Física Teórica Física Teórica

Ponente

David Alejandro Barón Ospina (Instituto de Física corpuscular IFIC)

Descripción

In this talk, a dispersive approach is presented to extract the s-wave $\eta\pi$ scattering phase shift in the elastic regime from BESIII $\eta^{\prime} \rightarrow \eta \pi \pi $ experimental data. This approach relies on unitarity and the structure of two-body partial wave amplitudes with an analytical closed formula for the Right-Hand-Cut and a conformal mapping for the Left-Hand-Cut. Finally, three-body final state interactions are modeled with the Khuri-Treiman equations

Autores primarios

David Alejandro Barón Ospina (Instituto de Física corpuscular IFIC) Prof. Emilie passemar (Universitat de Valencia, Indiana University) Prof. Igor Danilkin (Johannes Gutenberg Universität)

Materiales de la presentación

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