| Experiment | Measurement [10-5] | $\Delta\chi^2$ | Reference | Comments |
|---|---|---|---|---|
| Average | $2.66\,^{+0.32}_{-0.27}$ | 9.75 | $p=0.94$ (ndf=18) | |
| PDG | $2.66 \pm0.22$ | pdgLive | ||
| Belle | $3.8\,^{+1.0}_{-0.9} \pm0.7$ | 1.00 | Phys.Rev.D 82,072007 (2010) | Multiple systematic uncertainties are added in quadrature. |
| CDF | $( {\cal B}(B_s^0 \to K^+ K^-) / {\cal B}(B^0 \to K^+ \pi^-) ) \frac{f_s}{f_d}$ | 0.40 | Phys.Rev.Lett. 106,181802 (2011) | |
| LHCb | $( {\cal B}(B_s^0 \to K^+ K^-) / {\cal B}(B^0 \to K^+ \pi^-) ) \frac{f_s}{f_d}$ | 0.37 | JHEP 10,037 (2012) |
| Source | Parameter | Correlation [%] | Value | $\Delta\chi^2$ |
|---|---|---|---|---|
| fit | ${\cal B}(B_s^0 \to K^- \pi^+)$ | 63.4 | $5.90\,^{+0.87}_{-0.76} \times 10^{-6}$ | |
| fit | ${\cal B}(B_s^0 \to \pi^+ \pi^-)$ | 58.9 | $7.2\,^{+1.1}_{-1.0} \times 10^{-7}$ | |
| fit | ${\cal B}(B^0 \to K^+ \pi^-)$ | 20.5 | $1.946 \pm0.046 \times 10^{-5}$ | |
| fit | ${\cal B}(B^0 \to \pi^+ \pi^-)$ | 5.2 | $5.15 \pm0.19 \times 10^{-6}$ | |
| fit | ${\cal B}(B^0 \to K^+ K^-)$ | 2.5 | $8.0 \pm1.5 \times 10^{-8}$ | |
| fit | ${\cal B}(\Lambda_b^0 \to p \pi^-)$ | 1.6 | $4.55\,^{+0.91}_{-0.82} \times 10^{-6}$ | |
| fit | ${\cal B}(\Lambda_b^0 \to p K^-)$ | 1.3 | $5.4 \pm1.1 \times 10^{-6}$ | |
| fit | ${\cal B}(\Lambda_b^0 \to \Lambda^0 \phi(1020))$ | -0.2 | $1.01\,^{+0.29}_{-0.25} \times 10^{-5}$ | |
| fit | ${\cal B}(B^0 \to \phi(1020) K^0)$ | -0.0 | $7.25 \pm0.60 \times 10^{-6}$ | |
| fit | ${\cal B}(B_s^0 \to K^0 \bar{K}^0)$ | -0.0 | $1.74 \pm0.31 \times 10^{-5}$ | |
| external | $\frac{f_s}{f_d}$ | -85.9 | $0.241 \pm0.023$ | 0.05 |
| external | $f_{\Lambda^0_b}$ | 0.5 | $8.1 \pm1.1 \times 10^{-2}$ | 0.09 |
| external | $f_{d}$ | -0.1 | $0.4083 \pm0.0070$ | 0.00 |