Changes between Version 114 and Version 115 of DatabaseBasedAnalysis/Spectrum
- Timestamp:
- 12/05/19 11:05:41 (6 years ago)
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DatabaseBasedAnalysis/Spectrum
v114 v115 58 58 where \(N_\textrm{sig}\) is the number of events identified as potential gammas from the source direction ('on-source') and \(N_\textrm{bg}\) the number of gamma-like events measured 'off-source'. Note that for Simulations, \(\hat N_\textrm{bg}\) is not necessarily zero for wobble-mode observations as an event can survive the analysis for on- and off-events, if this is not prevented by the analysis (cuts). 59 59 60 The average number of background events \(\hat N_\textrm{bg}\) is the total number of background events \(N_\textrm{bg}\) from all off-regions times the corresponding weight \(\ alpha=\frac{1}{5}\). For five off-regions, this yields60 The average number of background events \(\hat N_\textrm{bg}\) is the total number of background events \(N_\textrm{bg}\) from all off-regions times the corresponding weight \(\frac{1}{5}\) (often referred to as \(\alpha\)). For five off-regions, this yields 61 61 62 62 \[\hat N_\textrm{bg} = \frac{N_\textrm{bg}}{5}\]