2010/10/19 by Ann E. Nelson, Ann E Nelson · 42 citations
Physics and Astronomy · #Astrophysics and Cosmic Phenomena #Biology #CP violation #Fermion #MiniBooNE #Neutrino #Neutrino Physics Research #Neutrino oscillation #Observable #Oscillation (cell signaling) #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum mechanics #Simple (philosophy) #Sterile neutrino #hep-ex #hep-ph #nucl-ex
paper · pdf · doi:10.1103/physrevd.84.053001
published in Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields 84(5) (American Physical Society) · 12 pages, 3 figures
arxiv created 2010/10/19 · openalex publication_date 2011/09/06 · arxiv updated 2013/05/29 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
Neutrinos may mix with ultralight fermions, which gives flavor oscillations, and with heavier fermions, which yields short distance flavor change. I consider the case where both effects are present. I show that in the limit where a single oscillation length is experimentally accessible, the effects of heavier fermions on short baseline neutrino oscillations can generically be accounted for by a simple formula containing only four parameters, including observable CP violation. I consider the anomalous LSND and MiniBooNE results, and show that these can be fit in a model with CP violation and two additional sterile neutrinos, one in the mass range between 0.1 and 20 eV, and the other with mass between 32 eV and 40 GeV. I also show that this model can avoid conflict with constraints from existing null short baseline experimental results.