Seesaw at LHC

By B. Bajc, Goran Senjanovic. 2006

179 citations recorded by the source corpus.

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.

Subfields: Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/f5c7300d5c4f0aae15a3dab827fab7707c6f8003

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In Nuclear and High Energy Physics

1. Yi-Fu Cai
2. R. Ruiz
3. Luca Visinelli
4. L. Luzio
5. E. Nardi
6. T. Han
7. Tong Li
8. Maurizio Giannotti

Citations in the corpus

• Lepton Number Violation: Seesaw Models and Their Collider Tests (2017, background): “, SU(5), is to introduce an adjoint 24F fermion multiplet in addition to the original 10F and 5̄F fermionic representations [5, 485].”
• Large underground, liquid based detectors for astro-particle physics in Europe: scientific case and prospects (2007, unknown): “References for the different models are: (1) [43], (2) [44, 45], (3) [46], (4) [47]–[50], (5) [51]–[54], (6) [55], (7) [56], (8) [57].”
• The landscape of QCD axion models (2020, background): “unification [772–774], provides a rather sharp prediction (arising from gauge coupling unification and proton decay constraints) for the value of the axion mass ma ∼ 5 neV, setting a well-definite target for axion DM experiments.”