Speaker
Rafel Escribano
(Universitat Autònoma de Barcelona (UAB) and Institut de Física d'Altes Energies (IFAE))
Description
We analyze the sensitivity of the rare decays $\eta^{(\prime)}\to\pi^{0}\gamma\gamma$ and $\eta^{\prime}\to\eta\gamma\gamma$ to GeV-signatures of a leptophobic $B$ boson.
A controlled theoretical description of the amplitudes, based on vector meson dominance and the linear sigma model, along with the current experimental data, has allowed us place limits on the $B$ boson properties, i.e. baryonic gauge coupling $g_{B}$, mass and width.
While the discovery potential offered by these processes is very promising, the experimental situation is not conclusive and it will not be possible to make a categorical statement until the arrival of new and more precise data, e.g. from the KLOE and JEF experiments.
Primary author
Rafel Escribano
(Universitat Autònoma de Barcelona (UAB) and Institut de Física d'Altes Energies (IFAE))
