https://doi.org/10.1140/epjs/s11734-026-02205-1
Regular Article
Sterile neutrinos at MAPP in the 
model
1
Department of Physics and Astronomy, University College London, Gower Street, WC1E 6BT, London, UK
2
Institute of Physics, NAWI Graz, University of Graz, Universitätsplatz 5, 8010, Graz, Austria
3
Department of Applied Physics, Nanjing University of Science and Technology, 210094, Nanjing, People’s Republic of China
a
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Received:
28
December
2025
Accepted:
13
February
2026
Published online:
25
February
2026
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 gauge boson 
, 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 
for multiple choices of 
values, when taking the gauge coupling 
near its current limit. The SM Z boson portal can reach a similar sensitivity, when the effective mixing between the and SM gauge boson is 
.
© The Author(s) 2026
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