478 research outputs found
Heavy neutrino production via at the lifetime frontier
We investigate the pair production of right-handed neutrinos from the decay
of an additional neutral boson in the gauged model. Taking
into account current constraints on the mass and the associated
gauge coupling , we analyse the sensitivity of proposed
experiments at the lifetime frontier, FASER 2, CODEX-b, MATHUSLA as well as a
hypothetical version of the MAPP detector to a long lived heavy neutrino
originating in the decays of the . We further complement this study
with determining the reach of LHCb and a CMS-type detector for the
high-luminosity LHC run. We demonstrate that in a background free scenario with
near the current limit, FASER 2 is sensitive to the
active-sterile neutrino mixing down to , while a
reach of can be obtained for CODEX-b and LHCb, in a
mass regime of GeV and GeV.
Finally, MATHUSLA can probe and cover the mixing
regime expected in a canonical seesaw scenario of light neutrino mass
generation.Comment: 20 pages, 6 figures, matches published versio
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