Highlights from the Telescope Array Experiment - INSPIRE

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Highlights from the Telescope Array Experiment

Telescope Array

Collaboration

•

Jihyun Kim
(
- Utah U.
)

Sep 25, 2023

18 pages

Published in:

PoS ICRC2023 (2024) 008

Contribution to:

- ICRC2023
, 008

Published: Sep 25, 2023

DOI:

10.22323/1.444.0008

Experiments:

TELESCOPE-ARRAY

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Abstract: (SISSA)

The Telescope Array (TA) is the largest ultra-high energy cosmic ray (UHECR) observatory in the Northern Hemisphere. Together with the TA Low Energy Extension (TALE), TA

\times

4, and TALE infill detector, the TA measures the properties of UHECR-induced extensive air showers (EAS) in the energy region from 10

^{15}

eV to over 10

^{20}

eV. Each of these uses a hybrid system with an array of scintillators to sample the footprint of the EAS at the Earth's surface along with telescopes that measure the fluorescence and Cherenkov light from the EAS. The statistics at the highest energies are being enhanced with the TA

\times

4 detector, half completed but still under construction, which will quadruple the surface detector area with telescopes. The TALE infill surface detectors were recently deployed to further lower the hybrid energy threshold of TALE. We present the status of the experiment and recent results on the energy spectrum, mass composition, and anisotropy, including new features in the energy spectrum at about 10

^{19.2}

eV and in the UHECR arrival direction anisotropy.

showers: atmosphere
cosmic radiation: UHE
detector: surface
energy: threshold
radiation: Cherenkov
energy: low
hybrid
energy spectrum
anisotropy
statistics

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Figures(0)

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