Abstract
In this work, we study the resonance contributions to the decay B^-rightarrow K^+K^-pi ^-, which is dominated by the scalar f_0(980), K_0^*(1430), vector rho (1450), phi (1020), K^*(892) and tensor f_2(1270) resonances. The three-body decay is reduced to various quasi two-body decays, where the B meson firstly decays into a resonance and a pion or a kaon, subsequently the resonance decays into the other two final-state mesons. The quasi two-body decays are calculated within the light-cone sum rule approach utilizing the leading twist B meson light-cone distribution amplitudes. Finally, the decay branching fraction contributions from each resonance is calculated. Some of them are compatible with experiment or previous theoretical works. Including the effects of non-resonant and final-state interactions, we also evaluate the total branching fraction.
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