Constraints on texture zero and cofactor zero models for neutrino mass

Journal Article · Tue Jun 24 00:00:00 EDT 2014 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4883441· OSTI ID:22306121

Whisnant, K.; Liao, Jiajun ^[1]; Marfatia, D. ^[2]

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1. Department of Physics and Astronomy, Iowa State University, Ames, IA 50011 (United States)
2. Department of Physics and Astronomy, University of Kansas, Lawrence, KS 66045, USA and Kavli Institute for Theoretical Physics, University of California, Santa Barbara, CA 93106 (United States)

Imposing a texture or cofactor zero on the neutrino mass matrix reduces the number of independent parameters from nine to seven. Since five parameters have been measured, only two independent parameters would remain in such models. We find the allowed regions for single texture zero and single cofactor zero models. We also find strong similarities between single texture zero models with one mass hierarchy and single cofactor zero models with the opposite mass hierarchy. We show that this correspondence can be generalized to texture-zero and cofactor-zero models with the same homogeneous costraints on the elements and cofactors.

• OSTI ID: 22306121
• Journal Information: AIP Conference Proceedings, Vol. 1604, Issue 1; Conference: PPC 2013: 7. international conference on interconnections between particle physics and cosmology, Lead-Deadwood, SD (United States), 24 Jun - 6 Jul 2013; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
LIMITING VALUES
MASS
MATRICES
NEUTRINOS