https://doi.org/10.1140/epjc/s10052-022-10855-3
Regular Article - Theoretical Physics
Displaced vertex and disappearing track signatures in type-III seesaw
1
Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117, Heidelberg, Germany
2
Department of Physics and Astronomy, University of Alabama, 35487, Tuscaloosa, AL, USA
3
Washington College, 21620, Chestertown, MD, USA
Received:
4
September
2020
Accepted:
28
September
2022
Published online:
19
October
2022
We investigate a prospect of probing the type-III seesaw neutrino mass generation mechanism at various collider experiments by searching for a disappearing track and a displaced vertex signature originating from the decay of triplet fermion (
). Since
is primarily produced at colliders through the electroweak gauge interactions, its production rate is uniquely determined by its mass. We find that a
particle produces a disappearing track signature from the decay of its charged component, which can be searched at the HL-LHC. Furthermore, we show that if the lightest observed neutrino has a mass of around
eV, the neutral component of
can be discovered at the proposed MATHUSLA detector. We also show that the charged component of
can be potentially be observed at FCC-he as a displaced vertex signature.
© The Author(s) 2022
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