Table 2.

Summary of background estimates by source, and total combined background, in the signal region. The uncertainties shown include the total statistical and systematic uncertainty. Also shown is the expected number of signal events for the benchmark points $(m_{\tilde{g}},m_{{\tilde{\mathit{\chi }}}_1^0})=(1500,100)$ and $(m_{\tilde{g}},m_{{\tilde{\mathit{\chi }}}_1^0})=(1500,1300)$, where all masses are in GeV

Source	Number of events
QCD ($\mathit{\gamma }\mathit{\gamma }$, $\mathit{\gamma }$j, jj)	$0.{05}_{-0.05}^{+0.20}$
$e\to \mathit{\gamma }$ fakes	$0.03\pm 0.02$
$W\mathit{\gamma }\mathit{\gamma }$	$0.17\pm 0.08$
$Z\mathit{\gamma }\mathit{\gamma }$	$0.02\pm 0.02$
Sum	$0.{27}_{-0.10}^{+0.22}$
$(m_{\tilde{g}},m_{{\tilde{\mathit{\chi }}}_1^0})=(1500,100)$	7.0
$(m_{\tilde{g}},m_{{\tilde{\mathit{\chi }}}_1^0})=(1500,1300)$	8.0