https://doi.org/10.1140/epjc/s10052-022-10062-0
Regular Article - Theoretical Physics
Resonance contributions in 
within the light-cone sum rule approach
1
Helmholtz-Institut für Strahlen- und Kernphysik and Bethe Center for Theoretical Physics, Universität Bonn, 53115, Bonn, Germany
2
Institute for Advanced Simulation, Institut für Kernphysik and Jülich Center for Hadron Physics, Forschungszentrum Jülich, 52425, Jülich, Germany
3
Tbilisi State University, 0186, Tbilisi, Georgia
4
School of Physical Science and Technology, Inner Mongolia University, 010021, Hohhot, China
Received:
27
November
2021
Accepted:
25
January
2022
Published online:
4
February
2022
In this work, we study the resonance contributions to the decay , which is dominated by the scalar 
, vector 
and tensor 
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.
© The Author(s) 2022
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