Evidence and Search for Sterile Neutrinos at Accelerators

Table 1

The main characteristics of the LSND and MiniBooNE experiments. Also the estimated number of neutrino background events and signal events for 100% 𝜈_𝜇→𝜈_𝑒 transmutation are shown. The 𝑅_𝛾>10 requirement is assumed for the LSND events.

Property	LSND	MiniBooNE 𝜈	MiniBooNE 𝜈
Proton energy	798 MeV	8000 MeV	8000 MeV
Proton intensity	1000 𝜇A	4 𝜇A	4 𝜇A
Proton beam power	798 kW	32 kW	32 kW
Protons on target	28,896 C	104 C	181 C
Duty factor	6×10^−2	8×10^−6	8×10^−6
Total mass	167 t	806 t	806 t
Neutrino distance	30 m	541 m	541 m
100% 𝜈𝜇→𝜈𝑒 events	12,987	89,615	38,462
𝜈 background events	16.9	797.7	398.2