Kavli Affiliate: Jonathan Rosner | Summary:We discuss the possibility that the two nearby resonances observed by BESIII partially below the ,$pbar p$, threshold might be due to mixing between two metastable states with the same $J^PC=0^-+$ quantum numbers, but rather different internal structure. One is a $p bar p$ hadronic molecule and the other a […]
Continue.. Possible mixing of a diquark-antidiquark with a $p bar p$ hadronic molecule