Non-perturbative QCD effects in ${\eta }_c$ and ${\eta }_b$ decays into baryons and WIMP scattering off nuclei

Miguel-Angel Sanchis-Lozano, Nikolai Kochelev, Redamy Perez-Ramos

In this work we estimate the helicity suppressed decay rates of ${\eta }_b$ resonances into baryon pairs due to instanton-induced effects by rescaling the corresponding partial widths of…