PT Journal
AU Molina, R
   Doring, M
   Oset, E
TI Determination of the compositeness of resonances from decays: The case of the B-s(0) -> J/Psi f(1)(1285)
SO Physical Review D
JI Phys. Rev. D
PY 2016
BP 114004 - 10pp
VL 93
IS 11
DI 10.1103/PhysRevD.93.114004
LA English
AB We develop a method to measure the amount of compositeness of a resonance, mostly made as a bound state of two hadrons, by simultaneously measuring the rate of production of the resonance and the mass distribution of the two hadrons close to threshold. By using different methods of analysis we conclude that the method allows one to extract the value of 1-Z with about 0.1 of uncertainty. The method is applied to the case of the (B) over bar (0)(s) -> J/Psi f(1)(1285) decay, by looking at the resonance production and the mass distribution of K (K) over bar*.
ER