INVESTIGADORES
MOLLERACH Maria Silvia
artículos
Título:
Muons in air showers at the Pierre Auger Observatory: measurement of atmospheric production depth
Autor/es:
THE PIERRE AUGER COLLABORATION, INCLUYE S. MOLLERACH
Revista:
PHYSICAL REVIEW D - PARTICLE AND FILDS
Editorial:
American Physical Society
Referencias:
Año: 2014
ISSN:
0556-2821
Resumen:
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 timing information from the flash
analog-to-digital converter traces of surface detectors far from the
shower core, it is possible to reconstruct a muon production depth
distribution. We characterize the goodness of this reconstruction for
zenith angles around 60° and different energies of the primary
particle. From these distributions, we define
Xmaxmu as the depth along the shower axis where
the production of muons reaches maximum. We explore the potentiality of
Xmaxmu as a useful observable to infer the mass
composition of ultrahigh-energy cosmic rays. Likewise, we assess its
ability to constrain hadronic interaction models.