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Develops method to detect gamma rays in complex backgrounds, suggesting reliable sources exist above 70 TeV.
This paper develops a method for searching for gamma rays from unknown sources against a complex astrophysical background based on data from the HiSCORE array in the TAIGA experiment. This task is divided into three stages: the development of criteria for distinguishing gamma rays from the main background particles; the selection of an assessment method and background smoothing; analysis of the statistical significance of a signal against the complex background. The first results of using this method are presented, and the reliability of detected gamma-ray sources with energies above 70 TeV is analyzed.
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Sveshnikova et al. (2026) studied this question.
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