activity
20202025
most citedMeasurement of the Proton-Air Cross Section with Telescope Array's Black Rock Mesa and Long Ridge Fluorescence Detectors, and Surface Array in Hybrid Mode

21 citations · 40 across the 5 of their papers we have counts for

collaborators

5 papers

astro-ph.GA2025

Searching for EeV photons with Telescope Array Surface Detector and neural networks

Telescope Array Collaboration, R. U. Abbasi, T. Abu-Zayyad +126

Ultra-high-energy photons play an important role in probing astrophysical models and beyond-Standard-Model scenarios. We report updated limits on the diffuse photon flux using Tele…

astro-ph.HE2024★ 1 cited

Isotropy of cosmic rays beyond eV favors their heavy mass composition

Telescope Array Collaboration, R. U. Abbasi, Y. Abe +138

We report an estimation of the injected mass composition of ultra-high energy cosmic rays (UHECRs) at energies higher than 10 EeV. The composition is inferred from an energy-depend…

astro-ph.HE2024

Mass composition of ultra-high energy cosmic rays from distribution of their arrival directions with the Telescope Array

Telescope Array Collaboration, R. U. Abbasi, Y. Abe +138

We use a new method to estimate the injected mass composition of ultrahigh cosmic rays (UHECRs) at energies higher than 10 EeV. The method is based on comparison of the energy-depe…

astro-ph.IM2021★ 18 cited

Surface detectors of the TAx4 experiment

Telescope Array Collaboration, R. U. Abbasi, M. Abe +145

Telescope Array (TA) is the largest ultrahigh energy cosmic-ray (UHECR) observatory in the Northern Hemisphere. It explores the origin of UHECRs by measuring their energy spectrum,…

astro-ph.HE2020★ 21 cited

Measurement of the Proton-Air Cross Section with Telescope Array's Black Rock Mesa and Long Ridge Fluorescence Detectors, and Surface Array in Hybrid Mode

R. U. Abbasi, M. Abe, T. Abu-Zayyad +140

Ultra high energy cosmic rays provide the highest known energy source in the universe to measure proton cross sections. Though conditions for collecting such data are less controll…