Speaker
Description
The 2015 LHCb discovery of an exotic structure (denoted by $P_c^+$) decaying in $J/\psi \,p$ and conjectured to be a penta-quark state has triggered a renewed interest in the possible existence of multiquark states not predicted by the naive quark model. In this talk we present some considerations on $P_c$ photo-production experiments, aimed at testing its multi-quark interpretation in the framework of a 40-years-old ''string-junction'' picture that allows a unified description of baryons, tetra-, and penta-quark states.
Summary
The 2015 LHCb discovery of an exotic structure (denoted by $P_c^+$) decaying in $J/\psi \,p$ and conjectured to be a penta-quark state has triggered a renewed interest in the possible existence of multiquark states not predicted by the naive quark model. In this talk we present some considerations on $P_c$ photo-production experiments, aimed at testing its multi-quark interpretation in the framework of a 40-years-old ''string-junction'' picture that allows a unified description of baryons, tetra-, and penta-quark states.
