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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…
Hard Exclusive Electroproduction of Pairs
The HERMES Collaboration, A. Airapetian
Hard exclusive electroproduction of pairs off hydrogen and deuterium targets has been studied by the HERMES experiment at DESY. Legendre moments and of the…
Quark fragmentation to , , , and in the nuclear environment
HERMES collaboration, A. Airapetian
The influence of the nuclear medium on lepto-production of hadrons was studied in the HERMES experiment at DESY in semi-inclusive deep-inelastic scattering of 27.6 GeV positrons of…
Erratum to: "Nuclear Effects on R=σ_L/σ_T in Deep-Inelastic Scattering" Phys.Lett. B475(2000)386
HERMES Collaboration, A. Airapetian
This erratum revokes the main conclusion of a Letter that reported measurements of cross sections for deep-inelastic scattering (DIS) of leptons on He and N targets, exp…
The Q^2-dependence of the Generalised Gerasimov-Drell-Hearn Integral for the Proton
A. Airapetian
The dependence on Q^2 (the negative square of the 4-momentum of the exchanged virtual photon) of the generalised Gerasimov-Drell-Hearn integral for the proton has been measured in…