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- W4385305155 abstract "We propose a new observable sensitive to the clustering of events in time and space, tuned to search for flares of high energy neutral particles, with a time scale of the order of $sim 1$ day, and moderate intensity. par So far, time-integrated blind and catalogue-based searches for sources of neutral particles have been used to measure their integrated and differential fluxes. However, we show that coherent periodic or explosive emissions of neutral particles can result in a local excess of events with respect to an isotropic background of charged cosmic rays, not only at small angular scales but also within a time window around the time stamp of such an astrophysical event. We further show how the optimal time and angular windows of the search depend on the total number of events of the data sample, as well as on the full field of view and exposure of the cosmic ray experiment. Additionally, the discerning power of the developed test statistic is studied using different scenarios for the spatial distribution of point sources and characteristic time scales for multiple emissions of neutral particles" @default.
- W4385305155 created "2023-07-28" @default.
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- W4385305155 date "2023-08-18" @default.
- W4385305155 modified "2023-10-14" @default.
- W4385305155 title "A novel method to search for point sources of ultra-high energy neutral particles using spacetime information" @default.
- W4385305155 doi "https://doi.org/10.22323/1.444.0451" @default.
- W4385305155 hasPublicationYear "2023" @default.
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