par Letessier-Selvon, Antoine;Billoir, Pierre;Blanco, Miguel;Maris, Ioana Codrina ;Settimo, Mariangela
Référence Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 767, page (41-49)
Publication Publié, 2014-12
Article révisé par les pairs
Résumé : We present a new design for the water Cherenkov detectors that are in use in various cosmic ray observatories. This novel design can provide a significant improvement in the independent measurement of the muonic and electromagnetic component of extensive air showers. From such multi-component data an event by event classification of the primary cosmic ray mass becomes possible. According to popular hadronic interaction models, such as EPOS-LHC or QGSJetII-04, the discriminating power between iron and hydrogen primaries reaches Fisher values of ~2 or above for energies in excess of 1019eV with a detector array layout similar to that of the Pierre Auger Observatory.