ITEDA   22747
INSTITUTO DE TECNOLOGIA EN DETECCION Y ASTROPARTICULAS
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
The synchronisation of the AMIGA muon detector
Autor/es:
D. RAVIGNANI; B. ANDRADA; B. GARCÍA; A. ALMELA; D. MELO; J. M. FIGUEIRA; B. WUNDHEILER; M. JOSEBACHUILI; O. WAINBERG; F. SÁNCHEZ; A. BOTTI; N. GONZÁLEZ; A. TAPIA CASANOVA; A. ETCHEGOYEN
Reunión:
Otro; Nota Interna de la Colaboración Pierre Auger; 2016
Resumen:
The timing of the signals recorded by the muon detector (MD) will extend the scientificreach of AMIGA to applications like the reconstruction of the muon production depth(MPD) and of the event geometry. The MPD can be measured from the arrival time ofmuons at the MD counters. The electromagnetic component of the air shower is mostlyfiltered out by 2.3 m of soil shielding, entailing a minimum energy of ∼ 1 GeV for verticalmuons. The high purity of the MD signals allows using all triggered counters but thosevery close to the core. At 2.3 m underground our simulations estimate less than 1% ofelectromagnetic contamination beyond 100 m. This distance is significantly lower than1700 m, the limit to select a detector for the MPD reconstruction in the SD analysis [1]. Inevents observed simultaneously by the SD and the MD, the relaxation of the cut distancewill enhance the MPD reconstruction with the enlarged muon sample provided by the MDdata. Furthermore, more muons will enable the MPD measurement down to 0.3 EeV, thethreshold energy for full trigger efficiency of the Infill. At higher energies the analysis willbe limited by the number of events that can be observed given the 23.5 km 2 of area plannedfor the MD array.