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Neutrino mass models at $\mu$TRISTAN

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arxiv 2309.06463 v2 pith:JFA4LKSQ submitted 2023-09-12 hep-ph hep-ex

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

We study the prospects of probing neutrino mass models at the newly proposed antimuon collider $\mu$TRISTAN, involving $\mu^+e^-$ scattering at $\sqrt{s}= 346$ GeV and $\mu^+\mu^+$ scattering at $\sqrt{s}= 2$ TeV. We show that $\mu$TRISTAN is uniquely sensitive to leptophilic neutral and doubly-charged scalars naturally occurring in various neutrino mass models, such as Zee, Zee-Babu, cocktail, and type-II seesaw models, over a wide range of mass and coupling values, well beyond the current experimental constraints. It also allows for the possibility to correlate the collider signals with neutrino mixing parameters and charged lepton flavor violating observables.

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Cited by 4 Pith papers

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

  1. Discovery prospects of a singly-charged scalar at $\mu$TRISTAN

    hep-ph 2026-01 conditional novelty 6.0 of 10

    A same-sign muon collider could discover the singly-charged scalar of Type-II seesaw through a lepton-flavor-violating process, and the final lepton flavor could distinguish normal from inverted neutrino mass ordering...

  2. Multiboson Signatures of Doubly Charged Scalars at a Same-Sign Muon Collider

    hep-ph 2026-07 conditional novelty 5.0 of 10

    A same-sign muon collider at 2 TeV with 1 ab^-1 could reach 2-sigma sensitivity to Type-II seesaw doubly charged scalars decaying to WW up to roughly 425-430 GeV, slightly extending current LHC coverage.

  3. Probing maximal flavor changing $Z'$ in $U(1)_{L_\mu-L_\tau}$ at $\mu$TRISTAN

    hep-ph 2025-07 conditional novelty 5.0 of 10

    MuTRISTAN's mu+mu+ mode could discover a mu-tau flavor-changing Z' with gauge coupling near 0.024 for masses around 500 GeV.

  4. Vector Boson Fusion Signatures of Superheavy Majorana Neutrinos at Muon Colliders

    hep-ph 2025-06 conditional novelty 4.0 of 10

    Future muon colliders could probe heavy Majorana neutrino masses via t-channel vector boson fusion, with projected exclusions in the (mass, mixing) plane from cut-based and BDT analyses.

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