Journal of High Energy Physics

, 2017:87

Updated fit to three neutrino mixing: exploring the accelerator-reactor complementarity

  • Ivan Esteban
  • M. C. Gonzalez-Garcia
  • Michele Maltoni
  • Ivan Martinez-Soler
  • Thomas Schwetz
Open AccessRegular Article - Theoretical Physics

DOI: 10.1007/JHEP01(2017)087

Cite this article as:
Esteban, I., Gonzalez-Garcia, M.C., Maltoni, M. et al. J. High Energ. Phys. (2017) 2017: 87. doi:10.1007/JHEP01(2017)087

Abstract

We perform a combined fit to global neutrino oscillation data available as of fall 2016 in the scenario of three-neutrino oscillations and present updated allowed ranges of the six oscillation parameters. We discuss the differences arising between the consistent combination of the data samples from accelerator and reactor experiments compared to partial combinations. We quantify the confidence in the determination of the less precisely known parameters θ23, δCP, and the neutrino mass ordering by performing a Monte Carlo study of the long baseline accelerator and reactor data. We find that the sensitivity to the mass ordering and the θ23 octant is below 1σ. Maximal θ23 mixing is allowed at slightly more than 90% CL. The best fit for the CP violating phase is around 270°, CP conservation is allowed at slightly above 1σ, and values of δCP ≃ 90° are disfavored at around 99% CL for normal ordering and higher CL for inverted ordering.

Keywords

Neutrino Physics Solar and Atmospheric Neutrinos 
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Copyright information

© The Author(s) 2017

Authors and Affiliations

  • Ivan Esteban
    • 1
  • M. C. Gonzalez-Garcia
    • 1
    • 2
    • 3
  • Michele Maltoni
    • 4
  • Ivan Martinez-Soler
    • 4
  • Thomas Schwetz
    • 5
  1. 1.Departament de Fisíca Quàntica i Astrofísica and Institut de Ciencies del CosmosUniversitat de BarcelonaBarcelonaSpain
  2. 2.Institució Catalana de Recerca i Estudis Avançats (ICREA)BarcelonaSpain
  3. 3.C.N. Yang Institute for Theoretical PhysicsState University of New York at Stony BrookStony BrookU.S.A.
  4. 4.Instituto de Física Teórica UAM/CSICUniversidad Autónoma de MadridMadridSpain
  5. 5.Institut für KernphysikKarlsruher Institut für Technologie (KIT)KarlsruheGermany