Y. Q. Lou

TL;DR: In this paper, the authors presented an updated all-particle energy spectrum of primary cosmic rays in a wide range from 10 14 to 10 17 eVusing 5:5 ; 10 7 events collected from 2000 November through 2004 October by the Tibet-III air-shower array located 4300 m in altitude.

TL;DR: This work reports on the highest energy photons from the Crab Nebula observed by the Tibet air shower array with the underground water-Cherenkov-type muon detector array, which is the first detection of photons with E>100 TeV from an astrophysical source.

TL;DR: For the first time, the long-awaited detection of diffuse gamma rays with energies between 100 TeV and 1 PeV in the Galactic disk was reported in this paper, which is consistent with expectations from the hadronic emission scenario in which gamma rays originate from the decay of π 0's produced through the interaction of protons with the interstellar medium.

TL;DR: In this article, the authors estimate the systematic error in determining the primary energy from its shower size, which is estimated to be less than ±12% in their experiment. But this error is consistent with other independent γ-ray observations by imaging air Cherenkov telescopes.

TL;DR: In this paper, the authors used a low threshold air-shower core detector named YAC to measure the heavy elements around the knee, which indicated the dominance of nuclei heavier than helium.