| Experiment | Measurement [10-5] | $\Delta\chi^2$ | Reference | Comments |
|---|---|---|---|---|
| Average | $2.74\,^{+0.32}_{-0.28}$ | 11.93 | $p=0.80$ (ndf=17) | |
| PDG | $2.72 \pm0.23$ | pdgLive | ||
| Belle | $3.8\,^{+1.0}_{-0.9} \pm0.7$ | 0.86 | 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 | $( {\cal B}(B_s^0 \to K^+ K^-) / {\cal B}(B^0 \to K^+ \pi^-) ) \frac{f_s}{f_d}$ | 0.36 | JHEP 10,037 (2012) |
| Source | Parameter | Correlation [%] | Value | $\Delta\chi^2$ |
|---|---|---|---|---|
| fit | ${\cal B}(B_s^0 \to K^- \pi^+)$ | 63.7 | $6.08\,^{+0.89}_{-0.78} \times 10^{-6}$ | |
| fit | ${\cal B}(B_s^0 \to \pi^+ \pi^-)$ | 59.2 | $7.4\,^{+1.2}_{-1.0} \times 10^{-7}$ | |
| fit | ${\cal B}(B^0 \to K^+ \pi^-)$ | 17.7 | $2.007 \pm0.040 \times 10^{-5}$ | |
| fit | ${\cal B}(B^0 \to \pi^+ \pi^-)$ | 3.4 | $5.36 \pm0.16 \times 10^{-6}$ | |
| fit | ${\cal B}(B^0 \to K^+ K^-)$ | 1.9 | $8.2 \pm1.5 \times 10^{-8}$ | |
| fit | ${\cal B}(\Lambda_b^0 \to p \pi^-)$ | 1.2 | $4.64\,^{+0.92}_{-0.83} \times 10^{-6}$ | |
| fit | ${\cal B}(\Lambda_b^0 \to p K^-)$ | 1.0 | $5.5 \pm1.1 \times 10^{-6}$ | |
| fit | ${\cal B}(\Lambda_b^0 \to \Lambda^0 \phi(1020))$ | -0.2 | $1.02\,^{+0.30}_{-0.25} \times 10^{-5}$ | |
| fit | ${\cal B}(B^0 \to \phi(1020) K^0)$ | -0.0 | $7.39 \pm0.65 \times 10^{-6}$ | |
| fit | ${\cal B}(B_s^0 \to K^0 \bar{K}^0)$ | -0.0 | $1.77 \pm0.31 \times 10^{-5}$ | |
| external | $\frac{f_s}{f_d}$ | -86.7 | $0.241 \pm0.023$ | 0.05 |
| external | $f_{\Lambda^0_b}$ | 0.4 | $8.1 \pm1.1 \times 10^{-2}$ | 0.08 |
| external | $f_{d}$ | -0.0 | $0.4082 \pm0.0070$ | 0.00 |