Measurement of the Fluctuations in the Number of Muons in Extensive Air Showers with the Pierre Auger Observatory

(Pierre Auger Collaboration)

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

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.

Original languageEnglish (US)
Article number152002
JournalPhysical review letters
Volume126
Issue number15
DOIs
StatePublished - Apr 16 2021

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Fingerprint

Dive into the research topics of 'Measurement of the Fluctuations in the Number of Muons in Extensive Air Showers with the Pierre Auger Observatory'. Together they form a unique fingerprint.

Cite this