Distribution of Lyα EW₀ of the candidate sample of miniJPAS and J-NEP. We compare the whole sample of candidates retrieved by our method in the mock (gray, dashed histogram) and in the observational data (orange, dashed histogram). We also compare the distribution of Lyα EW₀ for the mock subsample of true-positive LAEs (solid, black histogram) and the visually inspected subsample of miniJPAS and J-NEP (solid, red histogram) as defined in Sect. 4.11. For , more than a 90% of the sources retrieved from the mock are true LAEs.