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Seesaw at LHC

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arxiv hep-ph/0612029 v2 pith:HYWQW26K submitted 2006-12-04 hep-ph

Borut Bajc , Goran Senjanovic This is my paper · ORCID
classification hep-ph
keywords seesawallowsfermionictheoryadjointalternativeclearcomponent
verification ladder T0 review T1 audit T2 compute T3 formal

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We study the implementation of the type III seesaw in the ordinary nonsupersymmetric SU(5) grand unified theory. This allows for an alternative definition of the minimal SU(5) model, with the inclusion of the adjoint fermionic multiplet. The main prediction of the theory is the light fermionic SU(2) triplet with mass at the electroweak scale. Due to their gauge couplings, these triplets can be produced pair-wise via Drell-Yan, and due to the Majorana nature of the neutral component their decays leave a clear signature of same sign di-leptons and four jets. This allows for their possible discovery at LHC and provides an example of directly measurable seesaw parameters.

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Cited by 8 Pith papers

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  3. Ultraviolet Completion of a Two-loop Neutrino Mass Model

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    hep-ph 2019-08 conditional novelty 5.0 of 10

    For 0.14 to 6 GeV heavy neutrinos, accounting for the parent meson's velocity weakens projected LNV meson decay sensitivities by one to two orders of magnitude at NA62 and SHiP.

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    Torsion-induced four-fermion interactions modify effective masses and mixing parameters for Majorana neutrinos with sterile partners in matter.

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