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arXiv · 2111.05647

Resonance contributions in $B^-\to K^+K^-\pi^-$ within the light-come sum rule approach

Yu-Ji Shi·Ulf-G. Meißner·Zhen-Xing Zhao
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Abstract

In this work, we study the resonance contributions to the decay $B^-\to K^+K^-\pi^-$, 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 contribution from each resonance are 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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Yu-Ji Shi, Ulf-G. Meißner, Zhen-Xing Zhao. 2021-11-10. Resonance contributions in $B^-\to K^+K^-\pi^-$ within the light-come sum rule approach. https://doi.org/10.1140/epjc%2Fs10052-022-10062-0

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