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Quasi-two-body decays B(s)→PD0*(2400)→PDπ in the perturbative QCD approach
2019
Physical Review D
We study the quasi-two-body decays B→ P D^∗_0(2400) → P Dπ with P=(π, K, η, η^') in the perturbative QCD factorization approach. The predicted branching fractions for the considered decays are in the range of 10^-9-10^-4. The strong Cabibbo-Kobayashi-Maskawa (CKM) suppression factor R_CKM≈λ^4 (ρ̅^2 + η̅^2) ≈ 3× 10^-4 results in the great difference of the branching ratios for the decays with D_0^* and D̅_0^* as the intermediate states. The ratio R_D̅_0^*0 between the decays B^0 →D̅_0^*0 K^0→
doi:10.1103/physrevd.100.014017
fatcat:dq2vevs2mbd73dfg3ttc5guxkq