TA SD analysis for inclined air showers
K. Takahashi*, T. Sako, K. Fujita, K. Fujisue, K. Kawata, S. Ogio, H. Oshima, H. Sagawa, M. Takeda and On behalf of the Telescope Array collaboration
Pre-published on:
July 25, 2023
Published on:
—
Abstract
The origin of UHECRs is an open question which is complicated due to not very well-known deflections of the charged particles in Galactic and intergalactic magnetic fields. Finding the EeV neutrinos from astronomical sources will be a key to solve the problem of the origin. EeV neutrinos are expected to produce extensive air showers which are observable by the current operational air shower arrays. To search for neutrino-induced showers, it is important to increase both the interaction probability and background rejection power in the analysis of the inclined showers. We study a reconstruction method of the Telescope Array surface detector (TA SD) data for the neutrino-induced inclined air showers. The prime target is to improve the angular resolution for the astronomical objects. In this contribution, we present the detail of analysis method, angular resolution and total exposure of TA SD for neutrinos from the astronomical objects as a function of the declination.
DOI: https://doi.org/10.22323/1.444.0306
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