Автор |
Nicolao Fornengo |
Автор |
M. Concha Gonzalez-Garcia |
Автор |
Jose W. Furtado Valle |
Дата выпуска |
2000-07-01 |
dc.description |
Flavour changing (FC) neutrino-matter interactions have been proposed as a solution to the atmospheric neutrino anomaly. Here we perform the analysis of the full set of the recent 52 kTy SUPER-KAMIOKANDE atmospheric neutrino data, including the zenith angle distribution of the contained events as well as the higher energy upward-going stopping and through-going muon events. Our results show that the FC mechanism can describe the full data sample with a χ<sup>2</sup><sub>min</sub> = 44/33 d.o.f. which is acceptable only at the 90.5 confidence level, while the ν<sub>μ</sub>ν<sub>τ</sub> oscillation scenario gives a χ<sup>2</sup><sub>min</sub> = 23.5/33 d.o.f. which is valid at the 11 CL. The combined analysis confines the amount of FC to be either close to maximal or to the level of about (10-50). |
Формат |
application.pdf |
Издатель |
Institute of Physics Publishing |
Название |
On the interpretation of the atmospheric neutrino data in terms of flavor changing neutrino interactions |
Тип |
paper |
DOI |
10.1088/1126-6708/2000/07/006 |
Electronic ISSN |
1029- 8479 |
Print ISSN |
1126-6708 |
Журнал |
Journal of High Energy Physics |
Том |
2000 |
Первая страница |
6 |
Последняя страница |
006 |
Выпуск |
07 |