Systematic uncertainties in $\tau(\bar{B}_s^0)/\tau(\bar{B}^0)$

Source	Contribution to
	$\tau(\bar{B}_s^0)/\tau(\bar{B}^0)$
Prompt charm background
Prompt charm fraction ($f_c$)	$^{+0.025}_{-0.020}$
Prompt charm shape (${\cal F}_c$)	$^{+0.011}_{-0.012}$
Bottom background
Bottom background fraction ($f_b$)	$^{+0.009}_{-0.008}$
Bottom background shape (${\cal F}_b$)	$^{+0.003}_{-0.012}$
Sample composition (affects only $\tau(\bar{B}^0)$)
$D^{**}$ composition ($P_V$)	$^{+0.018}_{-0.023}$
$\pi_s^+$ reconstruction	$^{+0.000}_{-0.002}$
Missing momentum correction
$p_T(B)$ spectrum	$^{+0.022}_{-0.016}$
Electron cuts	-
$B$ decay model	$\pm0.012$
$D_s^{**+}$ fraction ($f^{**}$)	$^{+0.017}_{-0.011}$
Signal fraction ( $f_{\mbox{\small sig}}$)	$\pm0.011$
Resolution scale factor	$\pm0.004$
Decay length cut	-
Combinatorial background shape	$\pm0.012$
Detector alignment	-
Total	$^{+0.049}_{-0.046}$