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$B o phi K$ and $B o phi X_s$ in the Heavy Quark Limit | | Xiao-Gang He
; J.P. Ma
; Chung-Yi Wu
; | | Date: |
16 Aug 2000 | | Journal: | Phys.Rev. D63 (2001) 094004 | | Subject: | hep-ph hep-ex | | Affiliation: | NTU), J.P. Ma (ITP) and Chung-Yi Wu (NTU | | Abstract: | We study $B o phi K$ and $B o phi X_s$ decays in the heavy quark limit using perturbative QCD. The next leading order corrections introduce substantial modifications to the naive factorization results (more than 50%). The branching ratio $Br(B o phi K)$ is predicted to be in the range $(F^{B o K}_1(m^2_phi)/0.33)^2(3.5sim 4.2) imes 10^{-6}$ which is within the one $sigma$ allowed region from the central value of $6.2 imes 10^{-6}$ measured by CLEO, but outside the one $sigma$ allowed region from the central value of $17.2 imes 10^{-6}$ measured by BELLE for reasonable $F_1^{B o K}$. For the semi-inclusive decay $B o phi X_s$ we also include initial bound state effect in the heavy quark limit which decreases the branching ratio by about 10%. $Br(B o phi X_s)$ is predicted to be in the range $(5.1sim 6.3) imes 10^{-5}$. | | Source: | arXiv, hep-ph/0008159 | | Services: | Forum | Review | PDF | Favorites | |
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