Combining experimental and cosmological constraints on heavy neutrinos

2015/02/28 by Marco Drewes, Björn Garbrecht · 3 citations
Physics and Astronomy · #Big Bang nucleosynthesis #Dark Matter and Cosmic Phenomena #Electroweak interaction #Lepton #Lepton number #Neutrino #Neutrino Physics Research #Neutrino oscillation #Nuclear physics #Nucleosynthesis #Particle physics #Particle physics theoretical and experimental studies #Physics #Physics beyond the Standard Model #astro-ph.CO #hep-ex #hep-ph

paper · pdf · doi:10.1016/j.nuclphysb.2017.05.001

published as Nucl.Phys. B921 (2017) 250-315 · 64 pages, 22 figures. Matches published version

openalex publication_date 2017/05/11 · arxiv created 2017/08/03 · arxiv updated 2017/08/07 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

We study experimental and cosmological constraints on the extension of the Standard Model by three right handed neutrinos with masses between those of the pion and W boson. We combine for the first time direct, indirect and cosmological constraints in this mass range. This includes experimental constraints from neutrino oscillation data, neutrinoless double β decay, electroweak precision data, lepton universality, searches for rare lepton decays, tests of CKM unitarity and past direct searches at colliders or fixed target experiments. On the cosmological side, big bang nucleosynthesis has the most pronounced impact. Our results can be used to evaluate the discovery potential of searches for heavy neutrinos at LHCb, BELLE II, SHiP, ATLAS, CMS or a future lepton collider.

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Cited by

• Probing leptogenesis at future colliders
• GUT Physics in the Era of the LHC
• Resonant CP violation in rare τ ± decays