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$etap K$ puzzle of B meson decays and new physics effects in the general two-Higgs-doublet model | | Zhenjun Xiao
; Chong Sheng Li
; Kuang-Ta Chao
; | | Date: |
20 Dec 2000 | | Subject: | hep-ph | | Abstract: | we calculate the new physics contributions to seven measured decays $B o pi^+ pi^-, K pi$ and $ K etap$ in the general two-Higgs-doublet model (Model III). Within the considered parameter space, we find that: (a) the CLEO/BaBar measurement of $B o pi^+ pi^-$ decay prefers a small $F_0^{Bpi}(0)$: $F_0^{Bpi}(0)=0.25 pm 0.03$; (b) the new physics enhancements to the penguin-dominated $B o Kpi$ and $B o K etap$ decays are significant in size, $sim (40-70)%$ $w.r.t$ the standard model predictions; and (c) the new physics enhancements can boost the branching ratios ${cal B}(B o K^+ etap)$ and ${cal B}(B o K^0 etap)$ to be consistent with the data within one standard deviation, and hence lead to a simple and plausible new physics interpretation for the $etap K$ puzzle. | | Source: | arXiv, hep-ph/0012269 | | Services: | Forum | Review | PDF | Favorites | |
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