$\etap K$ puzzle of B meson decays and new physics effects in the general two-Higgs-doublet model
| dc.creator | Xiao, Zhenjun | |
| dc.creator | Li, Chong Sheng | |
| dc.creator | Chao, Kuang-Ta | |
| dc.date | 2000-12-20 | |
| dc.date | 2002-02-25 | |
| dc.date.accessioned | 2026-07-07T03:43:29Z | |
| dc.date.available | 2026-07-07T03:43:29Z | |
| dc.description | we calculate the new physics contributions to seven measured decays $B \to π^+ π^-, K π$ 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 $B\to π^+ π^-$ decay prefers a small $F_0^{Bπ}(0)$: $F_0^{Bπ}(0)=0.25 \pm 0.03$; (b) the new physics enhancements to the penguin-dominated $B \to Kπ$ and $B\to K \etap$ 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 ${\cal B}(B \to K^+ \etap)$ and ${\cal B}(B \to K^0 \etap)$ 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. | |
| dc.description | 19 pages, Latex file, 6 EPS figures. Small corrections | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0012269 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0012269 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/40237 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | $\etap K$ puzzle of B meson decays and new physics effects in the general two-Higgs-doublet model | |
| dc.type | text |