2001/01/03 by Kiwoon Choi, Eung Jin Chun, Kyuwan Hwang · 1 citation
Physics and Astronomy · #Dark Matter and Cosmic Phenomena #Neutrino Physics Research #Particle physics theoretical and experimental studies #hep-ph
paper · pdf · doi:10.1103/physrevd.64.033006
published as Phys.Rev. D64 (2001) 033006 · 7pp, one eps figure
arxiv created 2001/01/03 · openalex publication_date 2001/07/10 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
We suggest that the axino can be a natural candidate for a sterile neutrino which would accommodate the LSND data with atmospheric and solar neutrino oscillations. It is shown that the so-called 3+1 scheme can be easily realized when supersymmetry breaking is mediated by gauge interactions and also R parity is properly broken. Among the currently possible solutions to the solar neutrino problem, only the large angle MSW oscillation is allowed in this scheme. The weak scale value of the Higgs \ensuremathμ parameter and the required size of R-parity violation can be understood by means of spontaneously broken Peccei-Quinn symmetry.