Conveners
Parallel session B2
- Béatrice Ramstein (IJCLab)
One of the main issues posed by the presence of hadrons in any reaction is their final-state interactions, which are formally expressed in terms of the unitarity of the amplitude. In two-body scattering, unitarity is usually imposed in the direct channel only, as one is not sensitive to the details of the crossed channels. This is certainly not the case for a three-body decay, where the three...
We present a theoretical analysis of the doubly radiative decays $\eta^{(\prime)}\to\pi^{0}\gamma\gamma$ and $\eta^{\prime}\to\eta\gamma\gamma$, including vector, scalar, and tensor meson exchange contributions. Vector meson dominance and the linear sigma model are used for vector and scalar exchanges, while the $a_{2}(1320)$ tensor meson is incorporated within a chiral framework. Vector meson...
At beam energies of a few AGeV the pion production dominates the inelastic NN cross section. At these energies the pion dynamics is crucial to describe the evolution of heavy-ion collisions and drives the thermal properties of nuclear medium. Pion-nucleus scattering is an ideal tool to study properties of baryonic resonances in the nuclear medium.
Previous experiments extensively studied...
The antikaon-nucleus ($\bar{K}$-nucleus) interaction is fundamental to understanding the low-energy QCD and the behavior of strangeness in dense nuclear matter. While kaonic atom X-ray spectroscopy has provided valuable information about the interaction at the nuclear surface, the strength of the potential in the nuclear interior has remained a subject of long-standing debate, characterized by...
