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Measurement of atmospheric production depths of muons with the pierre auger observatory

Abstract : The time structure of muons at ground retains valuable information about the longitudinal development of the hadronic component in extensive air showers. Using the signals collected by the surface detector array of the Pierre Auger Observatory it is possible to reconstruct the Muon Production Depth (MPD) distribution. In this work we explore the main features of these reconstructions for zenith angles around 60° and different energies of the primary particle. From the MPDs we define a new observable, Xμmax as the depth, along the shower axis, where the maximum number of muons is produced. The potentiality of Xμmax to infer the mass composition of cosmic rays is studied.
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Submitted on : Thursday, June 27, 2013 - 11:55:38 AM
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D. Garcia-Gamez. Measurement of atmospheric production depths of muons with the pierre auger observatory. International Symposium on Future Directions in UHECR Physics (UHECR 2012), Feb 2012, Geneva, Switzerland. pp.04008, ⟨10.1051/epjconf/20135304008⟩. ⟨in2p3-00682717⟩



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