Matter Effects on Neutrino Oscillations in Long Baseline Experiments

Details Matter Effects on Neutrino Oscillations in Long Baseline Experiments Matter Effects on Neutrino Oscillations in Long Baseline Experiments

2000-02-14

arxiv.org/abs/hep-ph/0002149v2

Phys.Rev. D62 (2000) 053017

Physics

High Energy Physics

High Energy Physics - Phenomenology

26 pages, Latex, 17 postscript figures, published version, some references added

Scientific paper

10.1103/PhysRevD.62.053017

We calculate matter effects on neutrino oscillations relevant for long baseline experiments. In particular, we compare the results obtained with constant density along the neutrino path versus results obtained by incorporating the actual density profiles in the Earth. We study the dependence of the oscillation signal on both $E/\Delta m^2_{atm}$ and on the angles in the leptonic mixing matrix. We also comment on the influence of $\Delta m^2_{sol}$ on the oscillations. The results show quantitatively how, as a function of these input parameters, matter effects can cause significant (25 %) changes in the oscillation probabilities. An important conclusion is that matter effects can be useful in amplifying certain neutrino oscillation signals and helping one to obtain measurements of mixing parameters and the magnitude and sign of $\Delta m^2_{atm}$.

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