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Muons in air showers at the Pierre Auger Observatory: Measurement of atmospheric production depth
Pierre Auger Collaboration
The surface detector array of the Pierre Auger Observatory provides information about the longitudinal development of the muonic component of extensive air showers. Using the timin…
Measurement of the proton-air cross-section at TeV with the Pierre Auger Observatory
Pierre Auger Collaboration
We report a measurement of the proton-air cross-section for particle production at the center-of-mass energy per nucleon of 57 TeV. This is derived from the distribution of the dep…
A Study of \bar{p}p -> Two Neutral Pseudoscalar Mesons at the chi_c0(1^3P_0) Formation Energy
M. Andreotti
Fermilab experiment E835 has studied reactions \bar{p}p -> pi0 pi0, pi0 eta, eta eta, pi0 eta' and eta eta' in the energy region of the chi_c0(1^3P_0) from 3340 MeV to 3470 MeV. In…
Measurement of the Resonance Parameters of the and States of Charmonium formed in Antiproton-Proton Annihilations
M. Andreotti
We have studied the ( states of charmonium in formation by antiproton-proton annihilations in experiment E835 at the Fermilab Antiproton Source. We report new measure…
Measurement of the angular distribution in
Fermilab E835 Collaboration, M. Ambrogiani
We present the first measurement of the angular distribution for the exclusive process based on a sample of 6844 events collected by the Fermilab E83…