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Low scale gravity as the source of neutrino masses?

2004/01/31 by V. Berezinsky, Veniamin Berezinsky, Mohan Narayan +1 · 1 citation
Chemistry · Physics and Astronomy · #Astrophysics #Astrophysics and Cosmic Phenomena #Chemistry #Cosmology #Degenerate energy levels #Mass matrix #Mass spectrometry #Mass spectrum #Matrix (chemical analysis) #Neutrino #Neutrino Physics Research #Neutrino oscillation #Particle physics #Particle physics theoretical and experimental studies #Phenomenology (philosophy) #Physics #Quantum mechanics #Scale (ratio) #Sterile neutrino #hep-ph

paper · pdf · doi:10.1088/1126-6708/2005/04/009

published as JHEP 0504:009,2005 · 10 pages, 1 figure

openalex publication_date 2005/04/28 · arxiv created 2005/05/06 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

We address the question whether low-scale gravity alone can generate the neutrino mass matrix needed to accommodate the observed phenomenology. In low-scale gravity the neutrino mass matrix in the flavor basis is characterized by one parameter (the gravity scale MX) and by an exact or approximate flavor blindness (namely, all elements of the mass matrix are of comparable size). Neutrino masses and mixings are consistent with the observational data for certain values of the matrix elements, but only when the spectrum of mass is inverted or degenerate. For the latter type of spectra the parameter Mee probed in double beta experiments and the mass parameter probed by cosmology are close to existing upper limits.

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