PT Journal
AU Dai, LR
   Dias, JM
   Oset, E
TI Disclosing D* (D)over bar* molecular states in the B-c(-) -> pi(-) J/psi omega decay
SO European Physical Journal C
JI Eur. Phys. J. C
PY 2018
BP 210
EP 7pp
VL 78
IS 3
DI 10.1140/epjc/s10052-018-5702-7
LA English
AB We study the B-c(-) -> pi(-) J/omega and B-c(-) -> pi(-) D* (D) over bar* reactions and show that they are related by the presence of two resonances, the X(3940) and X(3930), that are of molecular nature and couple most strongly to D* (D) over bar*, but also to J/psi omega. Because of that, in the J/psi omega mass distribution we find a cusp with large strength at the D* (D) over bar* threshold and predict the ratio of strengths between the peak of the cusp and the maximum of the D* (D) over bar* distribution close to D* (D) over bar* threshold, which are distinct features of the molecular nature of these two resonances.
ER