New neutrino interactions at large colliders Águila Giménez, Francisco Del Aguilar Saavedra, Juan Antonio Blas Mateo, Jorge de Neutrino Interactions Hadronic colliders 35th International Conference of High Energy Physics - ICHEP2010, July 22-28, 2010, Paris (France). PoS(ICHEP 2010) 296. We update present bounds on the helicity of the neutrinos produced in muon decay, including e+e− ! f 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. 2014-02-26T13:17:16Z 2014-02-26T13:17:16Z 2010 info:eu-repo/semantics/article Águila, F.; Aguilar-Saavedra, J.A.; Blas, J. New neutrino interactions at large colliders. Proceedings of Science: 296 (2010). [http://hdl.handle.net/10481/30573] 1824-8039 http://hdl.handle.net/10481/30573 eng http://creativecommons.org/licenses/by-nc-nd/3.0/ info:eu-repo/semantics/openAccess Creative Commons Attribution-NonCommercial-NoDerivs 3.0 License Scuola Internazionale Superiore di Studi Avanzati (SISSA)