par Chun, Eung Jin;Kim, Choong Sun;Molinaro, Emiliano;Nardi, Enrico;Racker, Juan;Rius, Nuria;Zamora-Saa, Jilberto;Cvetič, Gorazd;Dev, P.S.B. P.S.B.;Drewes, Marco;Fong, Chee Sheng;Garbrecht, Björn;Hambye, Thomas ;Harz, Julia;Hernández, Pilar
Référence International journal of modern physics A, 33, 5-6, 1842005
Publication Publié, 2018-02
Référence International journal of modern physics A, 33, 5-6, 1842005
Publication Publié, 2018-02
Article révisé par les pairs
Résumé : | 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 WR, as well as model independently when measuring L = 2 washout processes at the LHC or neutrinoless double beta decay. |