Abstract The possibility of searching for right-handed neutrinos at the MoEDAL’s Apparatus for Penetrating Particles (MAPP) detector is investigated in this work. In particular, pair-production of right-handed (RH) neutrinos N from either a B-L B - L gauge boson Z' Z ′, as well as a Standard Model (SM) Z boson are considered. Under a no-background assumption, we show that the MAPP detector can be sensitive to active-sterile neutrino mixing strengths as low as V ₍² 10^-12 V μ N 2 ≈ 10 - 12 for multiple choices of mN / mₙ' m N / m Z ′ values, when taking the B-L B - L gauge coupling g₁-₋ = 10^-3 g B - L = 10 - 3 near its current limit. The SM Z boson portal can reach a similar sensitivity, when the effective mixing between the B-L B - L and SM gauge boson is 0. 002 α ≈ 0. 002.
Deppisch et al. (Wed,) studied this question.