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dc.contributor.authorAab, A.en
dc.contributor.authorAbreu, P.en
dc.contributor.authorAglietta, M.en
dc.contributor.authorAhn, E.en
dc.contributor.authorAl Samarai, I.en
dc.contributor.authorAlbuquerque, I.en
dc.contributor.authorAllekotte, I.en
dc.contributor.authorAllen, J.en
dc.contributor.authorAllison, P.en
dc.contributor.authorAlmela, A.en
dc.contributor.authorAlvarez Castillo, J.en
dc.contributor.authorAlvarez-Muñiz, J.en
dc.contributor.authorAlves Batista, R.en
dc.contributor.authorAmbrosio, M.en
dc.contributor.authorAminaei, A.en
dc.contributor.authorAnchordoqui, L.en
dc.contributor.authorAndringa, S.en
dc.contributor.authorAramo, C.en
dc.contributor.authorAranda, V.en
dc.contributor.authorArqueros, F.en
dc.contributor.authoret al.en
dc.identifier.citationPhysical Review D: Particles, Fields, Gravitation and Cosmology, 2015; 91(3):032003-1-032003-12en
dc.descriptionJ. A. Bellido, R.W. Clay, M. J. Cooper, B. R. Dawson, T. D. Grubb, T. A. Harrison, G. C. Hill, M. Malacari, S. J. Saffi, J. Sorokin are members of The Pierre Auger Collaborationen
dc.description.abstractWe present the first hybrid measurement of the average muon number in air showers at ultrahigh energies, initiated by cosmic rays with zenith angles between 62° and 80°. The measurement is based on 174 hybrid events recorded simultaneously with the surface detector array and the fluorescence detector of the Pierre Auger Observatory. The muon number for each shower is derived by scaling a simulated reference profile of the lateral muon density distribution at the ground until it fits the data. A 1019  eV shower with a zenith angle of 67°, which arrives at the surface detector array at an altitude of 1450 m above sea level, contains on average (2.68±0.04±0.48(sys))×107 muons with energies larger than 0.3 GeV. The logarithmic gain dlnNμ/dlnE of muons with increasing energy between 4×1018  eV and 5×1019  eV is measured to be (1.029±0.024±0.030(sys)).en
dc.description.statementofresponsibilityA. Aab ... J. A. Bellido ... R.W. Clay ... M. J. Cooper ... B. R. Dawson ... T. D. Grubb ... T. A. Harrison ... G. C. Hill ... M. Malacari ... S. J. Saffi ... J. Sorokin ... et al. (Pierre Auger Collaboration)en
dc.publisherAmerican Physical Societyen
dc.rights© 2015 American Physical Societyen
dc.titleMuons in air showers at the Pierre Auger Observatory: mean number in highly inclined eventsen
dc.typeJournal articleen
pubs.library.collectionIPAS publicationsen
dc.identifier.orcidBellido, J. [0000-0002-0833-9194]en
dc.identifier.orcidClay, R. [0000-0002-9040-9648]en
dc.identifier.orcidDawson, B. [0000-0002-4271-3055]en
Appears in Collections:IPAS publications

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