2006/09/30 by G. Karagiorgi, A. Aguilar-Arevalo, A. A. Aguilar-Arevalo +5 · 3 citations
Physics and Astronomy · #Astrophysics and Cosmic Phenomena #Neutrino Physics Research #Particle physics theoretical and experimental studies #hep-ph
paper · pdf · doi:10.1103/physrevd.75.013011
published as Phys.Rev.D75:013011,2007; Erratum-ibid.D80:099902,2009 · Fixed a typo following PRD Erratum. 8 pages, 5 figures
openalex publication_date 2007/01/29 · arxiv created 2009/11/12 · arxiv updated 2014/11/17 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
We investigate the extent to which leptonic CP-violation in (3+2) sterile neutrino models leads to different oscillation probabilities for \ensuremathν_\ensuremathμ\ensuremath→\ensuremathνe and \ensuremathν_\ensuremathμ\ensuremath→\ensuremathνe oscillations at MiniBooNE. We are using a combined analysis of short-baseline (SBL) oscillation results, including the LSND and null SBL results, to which we impose additional constraints from atmospheric oscillation data. We obtain the favored regions in MiniBooNE oscillation probability space for both (3+2) CP-conserving and (3+2) CP-violating models. We further investigate the allowed CP-violation phase values and the MiniBooNE reach for such a CP violation measurement. The analysis shows that the oscillation probabilities in MiniBooNE neutrino and antineutrino running modes can differ significantly, with the latter possibly being as much as 3 times larger than the first. In addition, we also show that all possible values of the single CP-violation phase measurable at short baselines in (3+2) models are allowed within 99% CL by existing data.