Table 8.

Data yields, signal and post-fit OS–SS background predictions (see Eq. (1)) for the $Z\to \mathit{\mu }{\mathit{\tau }}_{\mathrm{had}}$ 80 GeV$<m_{\mathit{\mu }\mathit{\tau }}^{\mathrm{MMC}}<$115 GeV region. The signal predictions are given assuming Br($Z\to \mathit{\mu }\mathit{\tau }$) = ${10}^{-5}$. The background predictions are obtained from the combined fit to SR1, SR2, WCR and TCR. To calculate these quantities for SR1 and SR2, the signal strengths are decorrelated in the signal regions and set to zero in the control regions. The post-fit values of systematic uncertainties are provided for the background predictions. For the total background, all correlations between various sources of systematic uncertainties and backgrounds are taken into account. The quoted uncertainties represent the statistical (first) and systematic (second) uncertainties, respectively

	SR1			SR2
Signal	86	±2	±22	56	±2	±18
$Z\to \mathit{\tau }\mathit{\tau }$	3260	±30	±60	7060	±40	±150
W+jets	1350	±70	±110	590	±50	±70
Same-Sign events	1110	±40	±100	930	±30	±90
$VV+Z\to \mathit{\mu }\mathit{\mu }$	410	±60	±50	240	±60	±60
$H\to \mathit{\tau }\mathit{\tau }$	25.1	± 0.5	±3.0	41	± 1	±5
Top	22	±4	±4	15	±4	±4
Total background	6170	±100	±100	8880	±100	±140
Data	6134			8982