A search for muon neutrino to electron neutrino oscillations at Δm2 > 0.1 eV2
- Princeton Univ., NJ (United States)
The evidence is compelling that neutrinos undergo flavor change as they propagate. In recent years, experiments have observed this phenomenon of neutrino oscillations using disparate neutrino sources: the sun, fission reactors, accelerators, and secondary cosmic rays. The standard model of particle physics needs only simple extensions - neutrino masses and mixing - to accommodate all neutrino oscillation results to date, save one. The 3.8σ-significant $$\bar{v}$$e excess reported by the LSND collaboration is consistent with $$\bar{v}$$μ →$$\bar{v}$$e oscillations with a mass-squared splitting of Δm2 ~ 1 eV2. This signal, which has not been independently verified, is inconsistent with other oscillation evidence unless more daring standard model extensions (e.g. sterile neutrinos) are considered.
- Research Organization:
- Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC02-07CH11359
- OSTI ID:
- 917855
- Report Number(s):
- FERMILAB-THESIS-2007-19; TRN: US0805158
- Country of Publication:
- United States
- Language:
- English
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