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Sensitivity of the SHiP experiment to Heavy Neutral Leptons

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arxiv 1811.00930 v3 pith:BB3NPFP3 submitted 2018-11-02 hep-ph hep-ex

classification hep-phhep-ex
keywords shipexperimentheavyhnlssensitivityleptonsneutralparticles
verification ladder T0 review T1 audit T2 compute T3 formal
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abstract

Heavy Neutral Leptons (HNLs) are hypothetical particles predicted by many extensions of the Standard Model. These particles can, among other things, explain the origin of neutrino masses, generate the observed matter-antimatter asymmetry in the Universe and provide a dark matter candidate. The SHiP experiment will be able to search for HNLs produced in decays of heavy mesons and travelling distances ranging between $\mathcal{O}(50\text{ m})$ and tens of kilometers before decaying. We present the sensitivity of the SHiP experiment to a number of HNL's benchmark models and provide a way to calculate the SHiP's sensitivity to HNLs for arbitrary patterns of flavour mixings. The corresponding tools and data files are also made publicly available.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Are neutrinos Majorana? Fixed-target and high-energy astrophysical searches decide

    hep-ph 2026-06 unverdicted novelty 6.0 of 10

    Correlated HNL discovery at SHiP and flavor ratio shifts in astrophysical neutrinos at telescopes would establish neutrinos as Majorana fermions.

  2. Constraining Heavy Neutral Leptons Coupled to the Tau-Neutrino Flavor at the Large Hadron Collider

    hep-ph 2025-10 conditional novelty 6.0 of 10

    DV searches with no prompt-lepton tag can probe HNLs with dominant tau-neutrino mixing at the LHC, improving existing bounds by more than an order of magnitude at Run 2 luminosity.

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