2012/07/19 by J. M. Conrad, C. Ignarra, Conrad, J. M. +7 · 1 citation
Physics and Astronomy · #Astrophysics and Cosmic Phenomena #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High Energy Physics - Phenomenology (hep-ph) #Neutrino Physics Research #Particle physics theoretical and experimental studies
paper · pdf · doi:10.48550/arxiv.1207.4765
openalex publication_date 2012/07/19 · openalex created_date 2019/06/27 · openalex updated_date 2026/07/28
This paper reviews short baseline oscillation experiments as interpreted\nwithin the context of one, two, and three sterile neutrino models associated\nwith additional neutrino mass states in the ~1 eV range. Appearance and\ndisappearance signals and limits are considered. We show that fitting short\nbaseline data sets to a (3+3) model, defined by three active and three sterile\nneutrinos, results in an overall goodness of fit of 67%, and a compatibility of\n90% among all data sets -- to be compared to the compatibility of 0.043% and\n13% for a (3+1) and a (3+2) model, respectively. While the (3+3) fit yields the\nhighest quality overall, it still finds inconsistencies with the MiniBooNE\nappearance data sets; in particular, the global fit fails to account for the\nobserved MiniBooNE low-energy excess. Given the overall improvement, we\nrecommend using the results of (3+2) and (3+3) fits, rather than (3+1) fits,\nfor future neutrino oscillation phenomenology. These results motivate the\npursuit of further short baseline experiments, such as those reviewed in this\npaper.\n