More models for lepton mixing with four constraints

Abstract

We propose new lepton-mixing textures that may be enforced through well-defined symmetries in renormalizable models. Each of our textures has four sum rules for the neutrino mass observables. The models are based on the type-I seesaw mechanism; their charged-lepton mass matrices are diagonal because of the symmetries imposed. Each model has three versions, depending on the identification of the charged leptons. Testing all the models, we have found that five of them agree with the data at the 1 sigma level when the neutrino-mass ordering is normal, and two models agree with the data for an inverted ordering. We detail the predictions of each of those seven models.

arXiv comment25 pages, 8 figures; In version 2 title and abstract modified, section 2 rewritten, section 3 have changes, v2 matches published version

References in corpus (11)

• Global analysis of three-flavour neutrino oscillations: synergies and tensions in the determination of theta_23, delta_CP, and the mass ordering
• Status of neutrino oscillations 2018: first hint for normal mass ordering and improved CP sensitivity
• Unveiling $\nu$ secrets with cosmological data: neutrino masses and mass hierarchy
• Zeroes of the Neutrino Mass Matrix
• Current unknowns in the three neutrino framework
• Zeros of the inverted neutrino mass matrix
• The seesaw mechanism at arbitrary order: disentangling the small scale from the large scale
• Maximal atmospheric neutrino mixing and the small ratio of muon to tau mass
• Mu-tau antisymmetry and neutrino mass matrices
• Fitting flavour symmetries: the case of two-zero neutrino mass textures
• Five models for lepton mixing

Cited by in corpus (1)

• Revisiting the Universal Texture Zero of Flavour: a Markov Chain Monte Carlo Analysis