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Radiation hardness qualification of PbWO4 scintillation crystals for the CMS Electromagnetic Calorimeter
The CMS Electromagnetic Calorimeter Group, P. Adzic, N. Almeida +267
Ensuring the radiation hardness of PbWO4 crystals was one of the main priorities during the construction of the electromagnetic calorimeter of the CMS experiment at CERN. The produ…
Atmospheric effects on extensive air showers observed with the Surface Detector of the Pierre Auger Observatory
The Pierre Auger Collaboration
Atmospheric parameters, such as pressure (P), temperature (T) and density, affect the development of extensive air showers initiated by energetic cosmic rays. We have studied the i…
The Fluorescence Detector of the Pierre Auger Observatory
The Pierre Auger Collaboration, J. Abraham, P. Abreu +515
The Pierre Auger Observatory is a hybrid detector for ultra-high energy cosmic rays. It combines a surface array to measure secondary particles at ground level together with a fluo…
Studies of Cosmic Ray Composition and Air Shower Structure with the Pierre Auger Observatory
The Pierre Auger Collaboration, J. Abraham, P. Abreu +470
Studies of the composition of the highest energy cosmic rays with the Pierre Auger Observatory, including examination of hadronic physics effects on the structure of extensive air…
Upper limit on the cosmic-ray photon fraction at EeV energies from the Pierre Auger Observatory
The Pierre Auger Collaboration, J. Abraham, P. Abreu +458
From direct observations of the longitudinal development of ultra-high energy air showers performed with the Pierre Auger Observatory, upper limits of 3.8%, 2.4%, 3.5% and 11.7% (a…