RT Journal Article
T1 Measurement of the Fluctuations in the Number of Muons in Extensive Air Showers with the Pierre Auger Observatory
A1 Aab, A.
A1 Zepeda, A.
A1 Álvarez Muñiz, Jaime
A1 Parente Bermúdez, Gonzalo
K1 Particle interactions
K1 Particle production
K1 Strong interaction
AB We present the first measurement of the fluctuations in the number of muons in extensive air showers produced by ultrahigh energy cosmic rays. We find that the measured fluctuations are in good agreement with predictions from air shower simulations. This observation provides new insights into the origin of the previously reported deficit of muons in air shower simulations and constrains models of hadronic interactions at ultrahigh energies. Our measurement is compatible with the muon deficit originating from small deviations in the predictions from hadronic interaction models of particle production that accumulate as the showers develop.
PB American Physical Society
SN 0031-9007
YR 2021
FD 2021-02-12
LK http://hdl.handle.net/10347/32680
UL http://hdl.handle.net/10347/32680
LA eng
NO Aab et al. (Pierre Auger Collaboration), Measurement of the Fluctuations in the Number of Muons in Extensive Air Showers with the Pierre Auger Observatory, Phys. Rev. Lett. 126, 152002
DS Minerva
RD 28 abr 2026