2010/07/31 by Evgeny Akhmedov, Thomas Schwetz · 60 citations
Physics and Astronomy · #CP violation #Dark Matter and Cosmic Phenomena #MINOS #MiniBooNE #Neutrino #Neutrino Physics Research #Neutrino oscillation #Oscillation (cell signaling) #Particle physics theoretical and experimental studies #Physics beyond the Standard Model #Sterile neutrino #hep-ex #hep-ph
paper · pdf · doi:10.1007/jhep10(2010)115
published in Journal of High Energy Physics 2010(10) (Springer Nature) · 28 pages, 9 figures, discussion improved, new appendix added, conclusions unchanged
arxiv created 2010/08/31 · openalex publication_date 2010/10/01 · arxiv updated 2010/11/08 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
The recently observed event excess in MiniBooNE anti-neutrino data is in agreement with the LSND evidence for electron anti-neutrino appearance. We propose an explanation of these data in terms of a (3+1) scheme with a sterile neutrino including non-standard neutrino interactions (NSI) at neutrino production and detection. The interference between oscillations and NSI provides a source for CP violation which we use to reconcile different results from neutrino and anti-neutrino data. Our best fit results imply NSI at the level of a few percent relative to the standard weak interaction, in agreement with current bounds. We compare the quality of the NSI fit to the one obtained within the (3+1) and (3+2) pure oscillation frameworks. We also briefly comment on using NSI (in an effective two-flavour framework) to address a possible difference in neutrino and anti-neutrino results from the MINOS experiment.