| Experiment | Measurement | Reference |
|---|---|---|
| Belle | \([3.6 \pm 0.9\mbox{ (stat)} \pm 0.6\mbox{ (syst)} \pm 0.9\mbox{ (BR(D_s^+ to phi pi^+))}] \times 10^{-5}\) | Belle:BC0621 (superseded) |
| Belle | \([2.9 \pm 0.7\mbox{ (stat)} \pm 0.5\mbox{ (syst)} \pm 0.4\mbox{ (brs)}] \times 10^{-5}\) | PRD 76 (2007) 051102 |
| Average | \(\mathbf{[2.9 \pm 0.9\mbox{ (combined)}] \times 10^{-5}}\) |