publication . Preprint . Other literature type . Article . 2016

Testable baryogenesis in seesaw models

Hernández, P.; Kekic, M.; López-Pavón, J.; Racker, J.; Salvado, J.;
Open Access English
  • Published: 26 Aug 2016
Abstract
We revisit the production of baryon asymmetries in the minimal type I seesaw model with heavy Majorana singlets in the GeV range. In particular we include "washout" effects from scattering processes with gauge bosons, Higgs decays and inverse decays, besides the dominant top scatterings. We show that in the minimal model with two singlets, and for an inverted light neutrino ordering, future measurements from SHiP and neutrinoless double beta decay could in principle provide sufficient information to predict the matter-antimatter asymmetry in the universe. We also show that SHiP measurements could provide very valuable information on the PMNS CP phases.
Subjects
arXiv: High Energy Physics::PhenomenologyHigh Energy Physics::Experiment
free text keywords: High Energy Physics - Phenomenology, Nuclear and High Energy Physics, Seesaw molecular geometry, Particle physics, Physics, Baryogenesis
Funded by
EC| InvisiblesPlus
Project
InvisiblesPlus
InvisiblesPlus
  • Funder: European Commission (EC)
  • Project Code: 690575
  • Funding stream: H2020 | MSCA-RISE
,
EC| ELUSIVES
Project
ELUSIVES
The Elusives Enterprise: Asymmetries of the Invisible Universe
  • Funder: European Commission (EC)
  • Project Code: 674896
  • Funding stream: H2020 | MSCA-ITN-ETN

[45] A. Ibarra, E. Molinaro and S.T. Petcov, TeV Scale See-Saw Mechanisms of Neutrino Mass [46] M. Mitra, G. Senjanovic and F. Vissani, Neutrinoless Double Beta Decay and Heavy Sterile Neutrinos, Nucl. Phys. B 856 (2012) 26 [arXiv:1108.0004] [INSPIRE].

[47] J. Lopez-Pavon, S. Pascoli and C.-f. Wong, Can heavy neutrinos dominate neutrinoless double beta decay?, Phys. Rev. D 87 (2013) 093007 [arXiv:1209.5342] [INSPIRE].

[48] DUNE collaboration, R. Acciarri et al., Long-Baseline Neutrino Facility (LBNF) and Deep [49] Hyper-Kamiokande Proto-Collaboration collaboration, K. Abe et al., Physics [50] https://users.ph.tum.de/ga24wax/2016 W3 slides/Hernandez slides.pdf.

Abstract
We revisit the production of baryon asymmetries in the minimal type I seesaw model with heavy Majorana singlets in the GeV range. In particular we include "washout" effects from scattering processes with gauge bosons, Higgs decays and inverse decays, besides the dominant top scatterings. We show that in the minimal model with two singlets, and for an inverted light neutrino ordering, future measurements from SHiP and neutrinoless double beta decay could in principle provide sufficient information to predict the matter-antimatter asymmetry in the universe. We also show that SHiP measurements could provide very valuable information on the PMNS CP phases.
Subjects
arXiv: High Energy Physics::PhenomenologyHigh Energy Physics::Experiment
free text keywords: High Energy Physics - Phenomenology, Nuclear and High Energy Physics, Seesaw molecular geometry, Particle physics, Physics, Baryogenesis
Funded by
EC| InvisiblesPlus
Project
InvisiblesPlus
InvisiblesPlus
  • Funder: European Commission (EC)
  • Project Code: 690575
  • Funding stream: H2020 | MSCA-RISE
,
EC| ELUSIVES
Project
ELUSIVES
The Elusives Enterprise: Asymmetries of the Invisible Universe
  • Funder: European Commission (EC)
  • Project Code: 674896
  • Funding stream: H2020 | MSCA-ITN-ETN

[45] A. Ibarra, E. Molinaro and S.T. Petcov, TeV Scale See-Saw Mechanisms of Neutrino Mass [46] M. Mitra, G. Senjanovic and F. Vissani, Neutrinoless Double Beta Decay and Heavy Sterile Neutrinos, Nucl. Phys. B 856 (2012) 26 [arXiv:1108.0004] [INSPIRE].

[47] J. Lopez-Pavon, S. Pascoli and C.-f. Wong, Can heavy neutrinos dominate neutrinoless double beta decay?, Phys. Rev. D 87 (2013) 093007 [arXiv:1209.5342] [INSPIRE].

[48] DUNE collaboration, R. Acciarri et al., Long-Baseline Neutrino Facility (LBNF) and Deep [49] Hyper-Kamiokande Proto-Collaboration collaboration, K. Abe et al., Physics [50] https://users.ph.tum.de/ga24wax/2016 W3 slides/Hernandez slides.pdf.

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