New neutrino interactions at large colliders
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.
Cite
@article{arxiv.1012.1327,
title = {New neutrino interactions at large colliders},
author = {Francisco del Aguila and Juan Antonio Aguilar-Saavedra and Jorge de Blas},
journal= {arXiv preprint arXiv:1012.1327},
year = {2015}
}
Comments
Latex 4 pages, 4 eps figures. Contribution to the Proceedings of the 35th International Conference of High Energy Physics - ICHEP2010, Paris, France, July 22-28, 2010