The Sudbury Neutrino Observatory consists of a 1 kiloton heavy water Cherenkov detector able to detect and reconstruct high-energy muons created from cosmic ray showers and atmospheric neutrino interactions. By measuring the flux of through-going muons as a function of zenith angle, the SNO experime
Experimental measurements of atmospheric neutrinos
โ Scribed by Edward Kearns
- Publisher
- Elsevier Science
- Year
- 1999
- Tongue
- English
- Weight
- 951 KB
- Volume
- 70
- Category
- Article
- ISSN
- 0920-5632
No coin nor oath required. For personal study only.
โฆ Synopsis
This talk reports the latest indications of an anomaly in the measurements of atmospheric neutrinos. New results from Soudan-2 and Super-Kamiokande provide evidence that the ratio of Y,, to ve interactions is not as expected. High energy Super-Kamiokande data indicates the cause is a deficit of upward-going Ye, and the zenith angle dependence of the effect is consistent with neutrino oscillations. Upward-going muon measurements by several detectors are discussed, but in total they provide inconclusive evidence for the anomaly.
๐ SIMILAR VOLUMES
The atmospheric neutrino beam simultaneously spans a range of pathlengths from ten to ten thousand kilometers, which correspond respectively to downward-and upward-going neutrinos. As with any neutrino oscillation experiment, also in this case the interpretation of the data depends on a detailed kno