Review Article
Ultrahigh Energy Neutrinos at the Pierre Auger Observatory
Table 3
Main sources of systematic uncertainty and their impact on the Earth-skimming [
32] and downward-going [
33] exposures.
| Source of uncertainty | Earth-skimming | Downward-going |
| Monte Carlo simulation of shower |
+20%, −5% |
+9%, −33% | -nucleon cross-section |
+5%, −9% |
+7%, −7% | energy losses |
+25%, −10% |
+6%, −6% | Topography |
+18%, 0% | — |
|
|