activity
19942026
most citedBig-Bang nucleosynthesis (Particle Data Group mini-review)

4.1k citations · 9.1k across the 79 of their papers we have counts for

collaborators

79 papers

astro-ph.IM2026

The performance of the TA4 surface detector array: 4.3 years of the first-half expansion

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

The Telescope Array (TA) experiment aims to reveal the origin of ultra-high-energy cosmic rays (UHECRs) by observing air showers using surface detectors (SDs), which spread over an…

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.HE2024★ 1 cited

Observation of Declination Dependence in the Cosmic Ray Energy Spectrum

The Telescope Array Collaboration, R. U. Abbasi, T. Abu-Zayyad +122

We report on an observation of the difference between northern and southern skies of the ultrahigh energy cosmic ray energy spectrum with a significance of . We use measu…

astro-ph.HE2023★ 78 cited

An extremely energetic cosmic ray observed by a surface detector array

Telescope Array Collaboration

Cosmic rays are energetic charged particles from extraterrestrial sources, with the highest energy events thought to come from extragalactic sources. Their arrival is infrequent, s…