| Abstract: | In 2012,we investigated the possible molecular states composed of two charmed mesons Phys.Rev.D 88(2013)114008;2012 arXiv:1211.5007 hep-ph]].The D~*D system with the quantum numbers of I(J~P)=0(1~+) was found to be a good candidate of the loosely bound molecular state.This state is very close to the D~* D threshold with a binding energy around 0.47 MeV.This prediction was confirmed by the new LHCb observation of T_(cc)~+ see Franz Muheim's talk at the European Physical Society conference on high energy physics 20211. |
