2003/05/21 by Francesco Vissani, Mohan Narayan, V. Berezinsky +1 · 4 citations
Physics and Astronomy · #Astrophysics #Dark Matter and Cosmic Phenomena #Degenerate energy levels #Gravitation #Mass matrix #Mass spectrometry #Mass spectrum #Mathematical physics #Neutrino #Neutrino Physics Research #Particle physics #Particle physics theoretical and experimental studies #Perturbation (astronomy) #Physics #Quantum mechanics #Renormalization #Supernova #hep-ph
paper · pdf · doi:10.1016/j.physletb.2003.07.002
published as Phys.Lett. B571 (2003) 209-216 · 10 pages, 1 figure
arxiv created 2003/05/21 · openalex publication_date 2003/09/12 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We consider non-renormalizable 1/MX interaction terms as a perturbation of the conventional neutrino mass matrix. Particular attention is given to the gravitational interaction with MX=MPl. We find that for the degenerate neutrino mass spectrum, the considered perturbation generates a non-zero U(e3) which is within reach of the high performance neutrino factories and just on the borderline to be of interest for supernova physics. For the hierarchical mass spectrum this effect is small. For 1/MX interaction terms with MX about the GUT scale, a detectable U(e3) term is induced for the hierarchical mass spectra also. Numerical estimates are given for all the above mentioned cases and renormalization effects are considered.