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

High Energy Physics - Phenomenology 2022-03-01 v1 High Energy Physics - Experiment
Authors: 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−→K+K−π−B^-\to K^+K^-\pi^-, which is dominated by the scalar f0(980),K0∗(1430)f_0(980), K_0^*(1430), vector ρ(1450),ϕ(1020),K∗(892)\rho(1450), \phi(1020), K^*(892) and tensor f2(1270)f_2(1270) resonances. The three-body decay is reduced to various quasi two-body decays, where the BB 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 BB 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.

Keywords

B meson decay resonance contributions light-cone sum rule quasi two-body decays branching fraction distribution amplitudes

Cite

@article{arxiv.2111.05647,
  title  = {Resonance contributions in $B^-\to K^+K^-\pi^-$ within the light-come sum rule approach},
  author = {Yu-Ji Shi and Ulf-G. Meißner and Zhen-Xing Zhao},
  journal= {arXiv preprint arXiv:2111.05647},
  year   = {2022}
}

Comments

29 pages, 1 figure

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