Double strangeness pentaquarks and other exotic hadrons in the ${\Xi }_b\to \Xi J/\Psi \varphi$ decay

J. A. Marsé-Valera, V. K. Magas, A. Ramos

We study the possibility that four $\Xi$ resonances $(\Xi (1620)$, $\Xi (1690)$, $\Xi (1820)$, $\Xi (1950))$ could correspond to pentaquark states, in the form of meson-baryon bound systems. We…