| Autor: |
Shi, Yu-Ji, Meißner, Ulf-G., Zhao, Zhen-Xing |
| Předmět: |
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| Zdroj: |
European Physical Journal C -- Particles & Fields; Feb2022, Vol. 82 Issue 2, p1-18, 18p |
| Abstrakt: |
In this work, we study the resonance contributions to the decay B - → K + K - π - , which is dominated by the scalar f 0 (980) , K 0 ∗ (1430) , vector ρ (1450) , ϕ (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. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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