Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1997-12-17
Phys.Rev.D58:031301,1998
Physics
High Energy Physics
High Energy Physics - Phenomenology
6 pages of text and 4 figures
Scientific paper
10.1103/PhysRevD.58.031301
We analyze the recent result of the CHOOZ collaboration in the context of mixing and oscillations between all the three neutrino flavors. If one assumes a hierarchy among the vacuum mass eigenvalues (\delta_{21} \ll \delta_{31}), then the CHOOZ result limits the (13) mixing angle \phi to quite small values. This in turn limits the contribution of the \nu_e <--> \nu_\mu oscillation channel to the atmospheric neutrino anomaly to less than 10 percent. It also implies that the solution to the solar neutrino problem is effectively \nu_e <--> \nu_\mu oscillation and that of the atmospheric neutrino problem is effectively \nu_\mu <--> \nu_\tau.
Narayan Mohan
Rajasekaran Guruswamy
Sankar Uma S.
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