Results onνμ→νeoscillations from pion decay in flight neutrinos
| Autor: | D. Works, Jacob Waltz, R. M. Gunasingha, V. D. Sandberg, E. D. Church, W. C. Louis, R. L. Burman, G. VanDalen, R. Majkic, Y. Xiao, C. Athanassopoulos, A. Fazely, R. A. Reeder, R. L. Imlay, S. J. Yellin, R. Tayloe, L. B. Auerbach, K. McIlhany, J. B. Donahue, I. Stancu, N. Wadia, W. Metcalf, G. B. Mills, W. Strossman, F. J. Federspiel, W. Vernon, D. H. White, Hyun-Chul Kim, I. Cohen, Dominic Smith, D. O. Caldwell, K. Johnston, G. T. Garvey |
|---|---|
| Rok vydání: | 1998 |
| Předmět: | |
| Zdroj: | Physical Review C. 58:2489-2511 |
| ISSN: | 1089-490X 0556-2813 |
| Popis: | A search for ${\ensuremath{\nu}}_{\ensuremath{\mu}}\ensuremath{\rightarrow}{\ensuremath{\nu}}_{e}$ oscillations has been conducted at the Los Alamos Meson Physics Facility using ${\ensuremath{\nu}}_{\ensuremath{\mu}}$ from ${\ensuremath{\pi}}^{+}$ decay in flight. An excess in the number of beam-related events from the ${\ensuremath{\nu}}_{e}\stackrel{\ensuremath{\rightarrow}}{C}{e}^{\ensuremath{-}}X$ inclusive reaction is observed. The excess is too large to be explained by normal ${\ensuremath{\nu}}_{e}$ contamination in the beam at a confidence level greater than 99%. If interpreted as an oscillation signal, the observed oscillation probability of $(2.6\ifmmode\pm\else\textpm\fi{}1.0\ifmmode\pm\else\textpm\fi{}0.5)\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}3}$ is consistent with the previously reported ${\overline{\ensuremath{\nu}}}_{\ensuremath{\mu}}\ensuremath{\rightarrow}{\overline{\ensuremath{\nu}}}_{e}$ oscillation evidence from LSND. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|