6th Workshop on Future Directions in Spectroscopy Analysis (FDSA2025)

Session

COMPASS/GlueX: Double Regge

9 Dec 2025, 09:15

DAM 7.24 Room (Facultat de Física, Universitat de Barcelona)

10. Welcome

Vincent Mathieu (UB)

09/12/2025, 09:15

Talks

Welcome

8. Double-regge amplitudes

Adam Szczepaniak (IU/JLab), César Fernández Ramírez (Universidad Nacional de Educación a Distancia (UNED))

09/12/2025, 09:30

Talks

We will review the theory behind Double-Regge amplitudes that describe the high energy regime of diffractive eta-pi production.

27. Pseudoscalar meson-pair production beyond the resonance region at COMPASS

Henri Pekeler

09/12/2025, 10:00

Talks

The COMPASS experiment at CERN's SPS provides a very large data set to study the
light-meson spectrum in diffractive production reactions of 190$\,$GeV$/\text{c}$ beam pions with protons. Among the many different final states accessible, $\eta\pi^-$ and $\eta^{\prime}\pi^-$ are clean channels to investigate the lightest hybrid-meson candidate, the $\pi_1(1600)$. One challenge in the...

18. A double-Regge exchange model for high-energy $\eta^{(\prime)}\pi$ photoproduction

Gloria Montana (Universitat de Barcelona & ICCUB)

09/12/2025, 10:30

Talks

The study of $\eta^{(\prime)}\pi$ photoproduction is particularly interesting for the search for the lowest lying hybrid meson with exotic quantum numbers, the $\pi_1(1600)$, at the GlueX experiment at Jefferson Lab. In this talk, I will present a model based on double-Regge exchange of vector trajectories $\eta^{(\prime)}\pi$ photoproduction at high energies. The model successfully describes...