Using the data taken at the Pierre Auger Observatory between December 2004 and
December 2012, we have examined the implications of the distributions of depths of …

The measurement of positrons and electrons (e+/-) in cosmic rays provides fundamental
information about the origin and the propagation of cosmic rays in the Galaxy. The interest in …

The motivation of this PhD thesis is to improve the capabilities to determine the mass
composition of the ultra-high energy cosmic rays in the Pierre Auger Observatory. The …

We report a study of the distributions of the depth of maximum, Xmax, of extensive air-
shower profiles with energies above 10 17.8 eV as observed with the fluorescence …

By separating ντ→ τ conversion from τ-shower generation, the Earth-skimming ντ method
allows for huge target mass and detection volume simultaneously. In part motivated by …

We report a study of the distributions of the depth of maximum, Xmax, of extensive air-
shower profiles with energies above 1017.8 eV as observed with the fluorescence …