probability_to_significance_normal_limit

gammapy.stats.probability_to_significance_normal_limit(probability)

Tail probability to significance in small probability limit.

Reference: https://ui.adsabs.harvard.edu/abs/2007physics…2156C, Equation (4)

They say it is better than 1% for s > 1.6.

Asymptotically: \(s \sim \sqrt{-\log(p)}\)

See also: significance_to_probability_normal_limit