Correct formula for `gammapy.stats.significance`
@@ -168,8 +168,8 @@ def significance(n_on, mu_bkg, method="lima", n_on_min=1):
It is given by the following formula:
.. math::
- S_{lima} = \left[
- 2 n_{on} \log \left( \frac{n_{on}}{\mu_{bkg}} \right) - n_{on} + \mu_{bkg}
+ S_{lima} = \sqrt{2} \left[
+ n_{on} \log \left( \frac{n_{on}}{\mu_{bkg}} \right) - n_{on} + \mu_{bkg}
\right] ^ {1/2}
For ``method="simple"``, the significance estimate is given by:
