Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2000-04-21
Phys.Lett.B485:379-387,2000
Physics
High Energy Physics
High Energy Physics - Phenomenology
Figure 1 labels corrected, reference added, minor changes in text. 12 pages, Latex2.09, uses epsf.sty, 4 postscript figures
Scientific paper
10.1016/S0370-2693(00)00729-2
We study the precision to which the sign of \delta m_{32}^2 can be determined at a neutrino factory, as a function of stored energies and baselines. This is done by simultaneously fitting the channels \nu_\mu \to \nu_\mu$, \bar\nu_e \to \bar\nu_\mu from \mu^- decays and the channels \bar\nu_\mu \to \bar\nu_\mu, \nu_e \to \nu_\mu from \mu^+ decays. We investigate the sensitivity reach in the parameter \sin^22\theta_{13} to which one can determine the sign of \delta m_{32}^2 to 3 standard deviations as a function of the baseline length and magnitude of \delta m_{32}^2 with a 20 GeV muon storage ring. We find that for baselines longer than 2000 km, the sign of \delta m^2_{32} can be determined for \sin^22\theta_{13} down to the 10^{-3} level with 10^{20} decays of 20 GeV muons.
Barger Vernon
Geer Steve
Raja Rajendran
Whisnant Kerry
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