1997/05/19 by Salvatore Esposito, S. Esposito, N. Tancredi +1
Physics and Astronomy · #Neutrino Physics Research #Noncommutative and Quantum Gravity Theories #Quantum Mechanics and Non-Hermitian Physics #astro-ph #hep-ph
paper · pdf · doi:10.1142/s0217732397001862
published as Mod.Phys.Lett.A12:1829-1838,1997 · 11 pages, Latex2e
arxiv created 1997/05/19 · openalex publication_date 1997/08/20 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
We study Pontecorvo neutrino–antineutrino oscillations both in vacuum and in matter within a field theoretic approach, showing that this phenomenon can occur only if neutrinos have a Dirac–Majorana mass term. We find that matter effects suppress these oscillations and cannot explain the solar neutrino problem. On the contrary, a vacuum neutrino–antineutrino oscillations solution to this problem exists. We analyze this solution and the available data from laboratory experiments giving stringent limits on ν e and ν μ Majorana masses.