Relevance of the coupled channels in the $\varphi$p and ${\rho }^0$p Correlation Functions

Abstract

The vector meson-baryon interaction in a coupled channel scheme is revisited within the correlation function framework. As illustrative cases to reveal the important role played by the coupled channels, we focus on the $\varphi$p and ${\rho }^0$p systems given their complex dynamics and the presence of quasi-bound states or resonances in the vicinity of their thresholds. We show that the $\varphi$p femtoscopic data provide novel information about a $N^{\ast }$ state present in the experimental region and anticipate the relevance of a future ${\rho }^0$p correlation function measurement in order to pin down the $S=0,Q=+1$ vector meson-baryon interaction as well as to disclose the characterizing features of the $N^{\ast }(1700)$ state.

8 pages, 5 figures