Speaker
Eulogio Oset
Description
I shall explain the relevance of coupled channel in the generation of molecular states. In particular the cases where the diagonal interaction of channels is zero and the presence of non diagonal terms leads to bound states of the systems. In particular I shall show the cases of the $T_c(3875)$, the $\Omega(2012)$, and the differences of the $P_c$ and $P_{cs}$ states due the different roles played by coupled channels, which have as a consequence the appearance of a $P_{cs}$ state around 4200 MeV. A method to observe it experimentally will be shown. In addition I shall present results establishing the analogy of the $\Omega(2830)$ with the $\Omega(2012)$.