Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The matter effects to neutrino oscillations \nu_\mu \to \nu_e, \nu_\mu
  at very long baselines and the neutrino mixing angles \theta_13 and \theta_23   We study the matter effects to neutrino oscillations \nu_\mu \to \nu_e and
\nu_\mu \to \nu_\mu at very long baselines. It has been observed that, for a
very long baseline L~10000 km, the resonance peak for the \nu_\mu \to \nu_e
oscillation and the local minimum of the \nu_\mu survival probability occurs at
similar energies. With a good knowledge on the absolute value of \Delta
m_{31}^2, measurements of the above oscillation probabilities, P_{\mu e} and
P_{\mu\mu}, can be performed with the neutrino energy tuned to the resonance
peak of the \nu_\mu \to \nu_e oscillations. We show that the variations of CP
violating phase and the solar neutrino mixing parameters have negligible
effects on P_{\mu e} and P_{\mu\mu} for such a long baseline. Hence P_{\mu e}
and P_{\mu\mu} together determine the mixing angles \theta_{13} and
\theta_{23}. Around the resonance peak for \nu_\mu \to \nu_e oscillations, the
dependencies of P_{\mu e} and P_{\mu\mu} on the above mixing angles are worked
out in detail, and the implications of such dependencies are discussed.

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The categories of this paper are: gr-qc
3
The categories of this paper are: physics
26
The categories of this paper are: bayes-an
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The categories of this paper are: mtrl-th
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The categories of this paper are: cmp-lg
31
The categories of this paper are: ao-sci
14
The categories of this paper are: math-ph
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The categories of this paper are: nucl-ex
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The categories of this paper are: patt-sol
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The categories of this paper are: comp-gas
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The categories of this paper are: hep-ex
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The categories of this paper are: math
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The categories of this paper are: nlin
33
The categories of this paper are: plasm-ph
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The categories of this paper are: solv-int
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The categories of this paper are: adap-org