PT Journal
AU Albaladejo, M
   Daub, JT
   Hanhart, C
   Kubis, B
   Moussallamd, B
TI How to employ (B)over-bar(d)(0) -> J/psi(pi eta, (K)over-barK) decays to extract information on pi eta scattering
SO Journal of High Energy Physics
JI J. High Energy Phys.
PY 2017
BP 010
EP 28pp
VL 04
IS 4
DI 10.1007/JHEP04(2017)010
LA English
DE Chiral Lagrangians; Heavy Quark Physics
AB We demonstrate that dispersion theory allows one to deduce crucial information on pi eta scattering from the final-state interactions of the light mesons visible in the spectral distributions of the decays (B) over bar (0)(d) -> J/psi(pi(0)eta, K+K-, K-0 (K) over bar (0)). Thus high-quality measurements of these differential observables are highly desired. The corresponding rates are predicted to be of the same order of magnitude as those for (B) over bar (0)(d) -> J/psi pi(+)pi(-) measured recently at LHCb, letting the corresponding measurement appear feasible.
ER