PT Journal
AU Wang, E
   Xie, JJ
   Geng, LS
   Oset, E
TI Analysis of the B+ -> J/Psi phi K+ data at low J/Psi phi invariant masses and the X(4140) and X(4160) resonances
SO Physical Review D
JI Phys. Rev. D
PY 2018
BP 014017
EP 6pp
VL 97
IS 1
DI 10.1103/PhysRevD.97.014017
LA English
AB We have studied the J/Psi phi mass distribution of the B+ -> J/Psi phi K+ reaction from threshold to about 4250 MeV, and find that one needs the contribution of the X(4140) with a narrow width, together with the X(4160) which accounts for most of the strength of the distribution in that region. The existence of a clear cusp at the D-s*(D) over bar (s)* threshold indicates that the X(4160) resonance is strongly tied to the D-s*(D) over bar (s)* channel, which finds a natural interpretation in the molecular picture of this resonance.
ER