English

Recent Findings from the Telescope Array Experiment

High Energy Astrophysical Phenomena 2026-05-20 v1 Instrumentation and Methods for Astrophysics

Abstract

The Telescope Array (TA) is the largest ultra-high energy cosmic ray (UHECR) observatory in the Northern Hemisphere. Together with its extensions, TA Low Energy (TALE), TALE infill, and the TA×\times4 array, it measures extensive air showers (EAS) initiated by UHECRs across an energy range spanning from 101510^{15} eV to beyond 102010^{20} eV. All components of the experiment employ a hybrid detection approach, combining plastic scintillator arrays that sample the EAS footprint at ground level with telescopes that record fluorescence and Cherenkov light from shower development in the atmosphere. The ongoing construction of TA×\times4 will significantly increase statistics at the highest energies by expanding the surface detector area by a factor of four. In addition, the recently deployed TALE infill array further lowers the hybrid energy threshold of TALE. This presentation summarizes the current status of the TA experiment and highlights recent findings on the energy spectrum, mass composition, and anisotropy.

Keywords

Cite

@article{arxiv.2605.19553,
  title  = {Recent Findings from the Telescope Array Experiment},
  author = {Jihyun Kim},
  journal= {arXiv preprint arXiv:2605.19553},
  year   = {2026}
}

Comments

10 pages, 11 figures, contribution to the 2026 Very High Energy Phenomena in the Universe session of the 60th Rencontres de Moriond