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Determination of the S-wave pi pi scattering lengths from a study of K+- -> pi+- pi0 pi0 decays
2 Collaboration
We report the results from a study of the full sample of ~ 6.031 10^7 K+- -> pi+- pi0 pi0 decays recorded by the NA48/2 experiment at the CERN SPS. As first observed in this experi…
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…
Precise measurement of the K+- --> pi+-e+e- decay
2 collaboration
A sample of 7253 decay candidates with 1.0% background contamination has been collected by the NA48/2 experiment at the CERN SPS, allowing a precise measu…