ℓWν production at CLIC: a window to TeV scale non-decoupled neutrinos Águila Giménez, Francisco Del Aguilar Saavedra, Juan Antonio Beyond Standard Model Neutrino Physics We discuss single heavy neutrino production e+ e- -> N nu -> l W nu, l = e, mu, tau, at a future high energy collider like CLIC, with a centre of mass energy of 3 TeV. This process could allow to detect heavy neutrinos with masses of 1-2 TeV if their coupling to the electron V_eN is in the range 0.004-0.01. We study the dependence of the limits on the heavy neutrino mass and emphasise the crucial role of lepton flavour in the discovery of a positive signal at CLIC energy. We present strategies to determine heavy neutrino properties once they are discovered, namely their Dirac or Majorana character and the size and chirality of their charged current couplings. Conversely, if no signal is found, the bound V_eN < 0.002-0.006 would be set for masses of 1-2 TeV, improving the present limit up to a factor of 30. We also extend previous work examining in detail the flavour and mass dependence of the corresponding limits at ILC, as well as the determination of heavy neutrino properties if they are discovered at this collider. 2014-03-05T10:31:54Z 2014-03-05T10:31:54Z 2005 info:eu-repo/semantics/article Águila, F.; Aguilar-Saavedra, J.A. ℓWν production at CLIC: a window to TeV scale non-decoupled neutrinos. Journal of High Energy Physics, 05: 026 (2005). [http://hdl.handle.net/10481/30677] 1029-8479 doi: 10.1088/1126-6708/2005/05/026 arXiv:hep-ph/0503026v2 http://hdl.handle.net/10481/30677 eng http://creativecommons.org/licenses/by-nc-nd/3.0/ info:eu-repo/semantics/openAccess Creative Commons Attribution-NonCommercial-NoDerivs 3.0 License IOP Publishing