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Verlagsausgabe
DOI: 10.5445/IR/1000086212
Veröffentlicht am 05.10.2018
Originalveröffentlichung
DOI: 10.1007/JHEP09(2018)124
Scopus
Zitationen: 1

Probing leptogenesis at future colliders

Antusch, Stefan; Cazzato, Eros; Drewes, Marco; Fischer, Oliver; Garbrecht, Björn; Gueter, Dario; Klarić, Juraj

Abstract:
We investigate the question whether leptogenesis, as a mechanism for explaining the baryon asymmetry of the universe, can be tested at future colliders. Focusing on the minimal scenario of two right-handed neutrinos, we identify the allowed parameter space for successful leptogenesis in the heavy neutrino mass range between 5 and 50 GeV. Our calculation includes the lepton flavour violating contribution from heavy neutrino oscillations as well as the lepton number violating contribution from Higgs decays to the baryon asymmetry of the universe. We confront this parameter space region with the discovery potential for heavy neutrinos at future lepton colliders, which can be very sensitive in this mass range via displaced vertex searches. Beyond the discovery of heavy neutrinos, we study the precision at which the flavour-dependent active-sterile mixing angles can be measured. The measurement of these mixing angles at future colliders can test whether a minimal type I seesaw mechanism is the origin of the light neutrino masses, and it can be a first step towards probing leptogenesis as the mechanism of baryogenesis. We discuss how a st ... mehr


Zugehörige Institution(en) am KIT Institut für Kernphysik (IKP)
Publikationstyp Zeitschriftenaufsatz
Jahr 2018
Sprache Englisch
Identifikator ISSN: 1029-8479
URN: urn:nbn:de:swb:90-862120
KITopen-ID: 1000086212
HGF-Programm 51.03.06 (POF III, LK 01)
Erschienen in Journal of high energy physics
Band 2018
Heft 9
Seiten Article: 124
Bemerkung zur Veröffentlichung Gefördert durch SCOAP3
Vorab online veröffentlicht am 20.09.2018
Schlagworte Cosmology of Theories beyond the SM; Neutrino Physics; Beyond Standard Model
Nachgewiesen in Scopus
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