Using MiniBooNE NCEL and CCQE cross section results to constrain 3+1 sterile neutrino models

Topical Research Meeting: Prospects in Neutrino Physics

Wilkinson, C.^1 ; Cartwright, S.^1 ; Thompson, L.^1

Department of Physics and Astronomy, University of Sheffield, Hicks Building, Hounsfield Road, Sheffield

S3 7RH, United Kingdom^1

关键词: Cross section model;    Cross-section measurement;    Fermi-gas models;    MiniBooNE;    Sterile neutrinos;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/598/1/012035/pdf
DOI  :  10.1088/1742-6596/598/1/012035

来源: IOP

【 摘 要 】

The MiniBooNE NCEL and CCQE cross-section measurements (neutrino running) are used to set limits in the Δm2- sin2μsplane for a 3+1 sterile neutrino model with a mass splitting 0.1 ≤ Δm2≤ 10.0 eV2. GENIE is used, with a relativistic Fermi gas model, to relate Evand the reconstructed quantities measured. The issue of uncertainty in the underlying cross section model and its effect on the sterile neutrino limits is explored, and robust sterile neutrino limits are produced by fitting the sterile parameters and the axial-mass cross-section parameter simultaneously.