Autocorrelation analysis of ANTARES data 1 Introduction

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F. SCHÜSSLER et al. ANTARES AUTOCORRELATION
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Figure 4: The significance of intrinsic clustering of data taken with the ANTARES neutrino telescope in 2007/2008. The
trial factor is not corrected for. The inset shows an enlarged view of the significance for small angular distances.
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2.5 Results and discussion
The described analysis has been applied to the 2090 selected
data events recorded by the ANTARES neutrino
telescope between 2007 and 2008. The uncorrected significance
as a function of the cumulative angular scale is
shown in figure 4. A maximum deviation between the data
and the reference distribution of 1.1 σ is found for an angular
scale < 7 ◦ . Correcting for the scanning trial factor
this corresponds to a p-value of 55 % and is therefore not
significant.
In the search for the sources of high energy cosmic rays, the
detection of astrophysical sources of neutrinos may play a
crucial role. Various experiments are currently taking data
or are in a preparatory phase to achieve this goal and the
recorded data is scrutinized in numerous ways in order to
extract a maximum of information. We presented here the
first search for intrinsic clustering of data recorded with the
ANTARES neutrino telescope. The data, taken during the
deployment phase of the detector, do not show evidence for
deviations from the isotropic arrival direction distribution
expected for the background of atmospheric neutrinos and
contamination by mis-reconstructed atmospheric muons.
trum unfolding with the ANTARES detector, these pro- 200
ceedings, 2011 201
[3] R. Abbasi et al. (AMANDA Collaboration), Search for 202
point sources of high energy neutrinos with final data 203
from AMANDA-II, PRD 79, 062001, 2009 204
[4] R. Abbasi et al. (IceCube Collaboration), Time- 205
integrated Searches for Point-like Sources of Neutrinos 206
with the 40-string IceCube Detector, APJ 732, 18-34, 207
2011 208
[5] M. Ageron et al. (ANTARES Collaboration), Point- 209
like source search with 2007-2008 data, in preparation, 210
2011 211
[6] C. Bogazzi for the ANTARES Collaboration, Search- 212
ing for point sources of high energy cosmic neutrinos 213
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