Dynamically generated $N^{\ast }$ and $\hat{I}{›}^{\ast }$ resonances in the hidden charm sector around 4.3 GeV

Abstract

The interactions of $\bar{D}\hat{I}{\pounds }_c$-$\bar{D}\hat{I}{›}_c$, ${\bar{D}}^{\ast }\hat{I}{\pounds }_c$-${\bar{D}}^{\ast }\hat{I}{›}_c$, and related strangeness channels, are studied within the framework of the coupled channel unitary approach with the local hidden gauge formalism. A series of meson-baryon dynamically generated relatively narrow $N^{\ast }$ and $\hat{I}{›}^{\ast }$ resonances are predicted around 4.3 GeV in the hidden charm sector. We make estimates of production cross sections of these predicted resonances in $\bar{p}p$ collisions for PANDA at the forthcoming FAIR facility.

35 pages, 12 figures