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The sources and average values of systematic uncertainties, used as the systematic uncertainty of the total cross section
| Source | Average value |
|---|---|
| Tracking efficiency | 7.8% |
| Misreconstructed tracks | 1% |
| Vertex | 1% |
| HF energy scale | 3% |
| ECAL and HCAL energy scale | 1% |
| Multiparticle background | 15% |
Exclusive and  background |
6% |
| Total w/o int. luminosity | 18.3% |
| + Integrated luminosity | 2.3% |
