Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Neutrino-induced upward-going muons in Super-Kamiokande   Upward-going muons observed by the Super-Kamiokande detector are produced by
high-energy atmospheric neutrinos which interact in rock around the detector.
Those which pass completely through the detector have a mean parent neutrino
energy of ~100 GeV, while those which range out inside the detector come from
neutrinos of mean energy ~10 GeV. The neutrino baseline varies with the
observed muon zenith angle, allowing for an independent test via nu-mu
disappearance of the neutrino oscillations observed in the Super-Kamiokande
contained events. 614 upward through-going and 137 upward stopping muons were
observed over 537 (516) live days, resulting in a flux of
Phi_t=1.74\pm0.07(stat.)\pm0.02(sys.),
Phi_s=0.380\pm0.038(stat.)^{+0.019}_{-0.016}(sys.)
x10^{-13}cm^{-2}s^{-1}sr^{-1}. The observed stopping/through-going ratio
R=0.218\pm0.023(stat.)^{+0.014}_{-0.013}(syst.) is 2.9 sigma lower than the
expectation of 0.368^{+0.049}_{-0.044}(theo.). Both the shape of the zenith
angle distribution of the observed flux and this low ratio are inconsistent
with the null oscillation hypothesis, but are compatible with the previously
observed nu-mu <-> nu-tau oscillations. Taken as a whole, the addition of these
higher energy nu-mu data to the contained neutrino events provides a better
measurement of the oscillation parameters, narrowing the allowed parameter
range to sin^22theta >~0.9 and 1.5x10^{-3}eV^2 <~ \Delta m^2 <~6x10^{-3} at 90%
confidence.

31
The categories of this paper are: ao-sci
21
The categories of this paper are: adap-org
34
The categories of this paper are: chem-ph
12
The categories of this paper are: nucl-th
15
The categories of this paper are: nucl-ex
32
The categories of this paper are: atom-ph
9
The categories of this paper are: nlin
6
The categories of this paper are: astro-ph
27
The categories of this paper are: comp-gas
20
The categories of this paper are: acc-phys
22
The categories of this paper are: chao-dyn
5
The categories of this paper are: gr-qc
33
The categories of this paper are: plasm-ph
35
The categories of this paper are: mtrl-th
0
The categories of this paper are: hep-ph
26
The categories of this paper are: bayes-an