Changes between Version 208 and Version 209 of DatabaseBasedAnalysis/Spectrum
- Timestamp:
- 12/09/19 16:19:48 (5 years ago)
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DatabaseBasedAnalysis/Spectrum
v208 v209 118 118 where \(N(\delta\theta)\) is the number of produced events in the interval \(\delta\theta\) and \(\Delta T(\delta\theta)\) is the total observation time in the same zenith angle interval. \(\tau_0\) is the normalization constant. 119 119 120 Assuming \(\sigma(\Delta T)=0\) gives 121 122 \[\sigma^2(\tau_i) = \left[\frac{d\tau_i}{dN_i}\sigma(N_i)\right]^2=\left[\tau_0\frac{\Delta T_i}{N_i^2}\sigma(N_i)\right]^2= \left[\tau_0\frac{\Delta T_i}{N_i^2}\right]^2\cdot N_i\] 120 \[\sigma^2(\tau_i) = \left[\frac{d\tau_i}{d\Delta T_i}\sigma(\Delta T_i)\right]^2+\left[\frac{d\tau_i}{dN_i}\sigma(N_i)\right]^2=\left[\tau_0\frac{\Delta T_i}{N_i^2}\sigma(N_i)\right]^2= \left[\tau_0\frac{\Delta T_i}{N_i^2}\right]^2\cdot N_i\] 123 121 124 122