1 Publisher Erratum: Eur. Phys. J. C (2022) 82:936https://doi.org/10.1140/epjc/s10052-022-10884-y

In this article the author name Anna Julia Zsigmond was incorrectly written as Anna Julia J. Zsigmond due to a typesetting mistake.

Equation (3) also contained a mistake. The correct equation is:

$$\begin{aligned} N(\mathcal {H}) = \dfrac{N_0}{2} + \dfrac{N_0}{2} \text {erf}\left( \dfrac{\sqrt{2} (\mathcal {H} - \mathcal {H}_e(\mathcal {A}))}{R_b}\right) + B, \end{aligned}$$

The sentence following Eq. (3) has also been amended: [...] where \(R_b\) is the average radius of the beam spot, \(N_0\) is the event rate expected when the beam spot is fully contained on the detector surface and B is the rate of background events.

The original article has been revised.