2017/11/08 by E. J. Chun, G. Cvetič, P. S. B. Dev +12 · 84 citations
Computer Science · Physics and Astronomy · #Computational Physics and Python Applications #Leptogenesis #Lepton #Lepton number #Neutrino #Neutrino Physics Research #Neutrino oscillation #Particle physics theoretical and experimental studies #Physics beyond the Standard Model #Seesaw mechanism #Seesaw molecular geometry #hep-ph
paper · pdf · doi:10.1142/s0217751x18420058
published in International Journal of Modern Physics A 33(05n06), 1842005 (World Scientific) · 99 pages, 29 figures. Chapter 5 of the review volume "Leptogenesis: Current Challenges for Model Building, Phenomenology and Non-Equilibrium Field Theory."
arxiv created 2017/11/08 · openalex created_date 2017/12/22 · openalex publication_date 2018/02/28 · arxiv updated 2018/04/04 · openalex updated_date 2026/08/05
The focus of this paper lies on the possible experimental tests of leptogenesis scenarios. We consider both leptogenesis generated from oscillations, as well as leptogenesis from out-of-equilibrium decays. As the Akhmedov–Rubakov–Smirnov (ARS) mechanism allows for heavy neutrinos in the GeV range, this opens up a plethora of possible experimental tests, e.g. at neutrino oscillation experiments, neutrinoless double beta decay, and direct searches for neutral heavy leptons at future facilities. In contrast, testing leptogenesis from out-of-equilibrium decays is a quite difficult task. We comment on the necessary conditions for having successful leptogenesis at the TeV-scale. We further discuss possible realizations and their model specific testability in extended seesaw models, models with extended gauge sectors, and supersymmetric leptogenesis. Not being able to test high-scale leptogenesis directly, we present a way to falsify such scenarios by focusing on their washout processes. This is discussed specifically for the left–right symmetric model and the observation of a heavy [Formula: see text], as well as model independently when measuring [Formula: see text] washout processes at the LHC or neutrinoless double beta decay.