ellWν production at CLIC: a window to TeV scale non-decoupled neutrinos

2005/03/31 by F. del Águila, F. del Aguila, J. A. Aguilar–Saavedra +1 · 7 citations
Physics and Astronomy · #Dark Matter and Cosmic Phenomena #Neutrino Physics Research #Particle physics theoretical and experimental studies #hep-ph

paper · pdf · doi:10.1088/1126-6708/2005/05/026

published as JHEP 0505:026,2005 · LaTeX 32 pages. Added comments and references. Matches version to appear in JHEP

arxiv created 2005/04/22 · openalex publication_date 2005/05/12 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/01

Abstract

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.

Citations

• TESLA Technical Design Report Part III: Physics at an e+e- Linear Collider
• Texture zeros and majorana phases of the neutrino mass matrix
• Measurement of Day and Night Neutrino Energy Spectra at SNO and Constraints on Neutrino Mixing Parameters
• Matter effects andCPviolating neutrino oscillations with nondecoupling heavy neutrinos
• Particle physics implications of neutrinoless double beta decay
• Neutrinoless double beta decay and direct searches for neutrino mass
• Measurement of the Total Active 8B Solar Neutrino Flux at the Sudbury Neutrino Observatory with Enhanced Neutral Current Sensitivity
• Big Bang Nucleosynthesis (in "The Review of Particle Properties" 2004)

Cited by

• Anatomy ofFD-term hybrid inflation
• Electroweak-scale resonant leptogenesis
• A little Higgs model of neutrino masses
• Flavor in heavy neutrino searches at the LHC
• Collider aspects of flavor physics at high Q
• Neutrino masses and a TeV scale seesaw mechanism
• Heavy lepton pair production at LHC: Model discrimination with multi-lepton signals