Study of muon signal discrepancy between data and simulations at 1017.5 eV in hybrid events

MARIA BELEN ANDRADA; ANA BOTTI; ALAN FUSTER; NICOLAS GONZALEZ; DIEGO MELO; MANUEL PLATINO; CHRISTIAN SARMIENTO CANO; BRIAN WUNDHEILER; FEDERICO SANCHEZ; ALBERTO ETCHEGOYEN; BEATRIZ GARCIA; MATIAS HAMPEL; SARAH MULLER; DIEGO RAVIGNANI; SCORNAVACHE MARINA; ALEJANDRO ALMELA; JUAN MANUEL FIGUEIRA; FLAVIA GESUALDI; AGUSTÍN LUCERO; MATIAS PERLIN; MATIAS RONCORONI; GAIA SILLI

Otro; Pierre Auger Collaboration; 2019

In this work, we present the first results of a study of signal discrepancies between data and simulations with Golden Hybrid events measured with the SD-750 and HeCo. We follow the strategy of previous works but at lower energies. We see a difference in the signal of the Water-Cherenkov detectors between the acquired and simulated events of about 25% and 20% for proton and iron initiated showers and QGSJet-II-04 respectively. The observed discrepancy is attributable to the muon deficit in simulations. These results are compatible with those obtained with the Underground Muon Detector in the same energy range.