Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/92523
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Type: Journal article
Title: Muons in air showers at the Pierre Auger Observatory: measurement of atmospheric production depth
Author: Aab, A.
Abreu, P.
Aglietta, M.
Ahlers, M.
Ahn, E.
Al Samarai, I.
Albuquerque, I.
Allekotte, I.
Allen, J.
Allison, P.
Almela, A.
Alvarez Castillo, J.
Alvarez-Muñiz, J.
Alves Batista, R.
Ambrosio, M.
Aminaei, A.
Anchordoqui, L.
Andringa, S.
Aramo, C.
Arqueros, F.
et al.
Citation: Physical Review D: Particles, Fields, Gravitation and Cosmology, 2014; 90(1):012012-1-012012-15
Publisher: American Physical Society
Issue Date: 2014
ISSN: 1550-7998
1550-2368
Statement of
Responsibility: 
A. Aab ... K. B. Barber ... 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)
Abstract: The surface detector array of the Pierre Auger Observatory provides information about the longitudinal development of the muonic component of extensive air showers. Using the timing information from the flash analog-to-digital converter traces of surface detectors far from the shower core, it is possible to reconstruct a muon production depth distribution. We characterize the goodness of this reconstruction for zenith angles around 60° and different energies of the primary particle. From these distributions, we define Xμmax as the depth along the shower axis where the production of muons reaches maximum. We explore the potentiality of Xμmax as a useful observable to infer the mass composition of ultrahigh-energy cosmic rays. Likewise, we assess its ability to constrain hadronic interaction models.
Rights: © 2014 American Physical Society
RMID: 0030009095
DOI: 10.1103/PhysRevD.90.012012
Appears in Collections:IPAS publications

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