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arXiv · 1012.1327

New neutrino interactions at large colliders

Francisco del Aguila·Juan Antonio Aguilar-Saavedra·Jorge de Blas
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Abstract

We update present bounds on the helicity of the neutrinos produced in muon decay, including e+ e- -> fbar f LEP 2 data. These significantly reduce the limits derived from all the other electroweak precision data. In Standard Model extensions designed to maximize the RH neutrino production in such a decay the neutrino deficit eventually observable in a near detector at a neutrino factory can be of the order of 5 %. Motivated by the current LHC run at 7 TeV, we also update previous work providing discovery limits on see-saw mediators at this centre of mass energy. Lepton triplets with 200 GeV could be discovered with luminosities of 1 - 1.5 fb^-1. Scalar triplets of the same mass might be seen with 0.75 - 3 fb^-1. What makes their search also attractive in the first LHC analyses.

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Francisco del Aguila, Juan Antonio Aguilar-Saavedra, Jorge de Blas. 2010-12-06. New neutrino interactions at large colliders. https://arxiv.org/abs/1012.1327

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