Title
Interpretation of the depths of maximum of extensive air showers measured by the Pierre Auger Observatory
Date Issued
01 February 2013
Access level
open access
Resource Type
journal article
Author(s)
Abreu P.
Aglietta M.
Ahlers M.
Ahn E.J.
Albuquerque I.F.M.
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.
Antičič T.
Aramo C.
Arqueros F.
Asorey H.
Assis P.
Aublin J.
Ave M.
Avenier M.
Avila G.
Badescu A.M.
Barber K.B.
Barbosa A.F.
Bardenet R.
Baughman B.
Bäuml J.
Baus C.
Beatty J.J.
Becker K.H.
Bellétoile A.
Bellido J.A.
BenZvi S.
Berat C.
Bertou X.
Biermann P.L.
Billoir P.
Blanco F.
Blanco M.
Bleve C.
Blümer H.
Boháčová M.
Boncioli D.
Bonifazi C.
Bonino R.
Borodai N.
Brack J.
Brancus I.
Brogueira P.
Brown W.C.
Buchholz P.
Bueno A.
Buroker L.
Burton R.E.
Buscemi M.
Caballero-Mora K.S.
Caccianiga B.
Caccianiga L.
Caramete L.
Caruso R.
Castellina A.
Cataldi G.
Cazon L.
Cester R.
Cheng S.H.
Chiavassa A.
Chinellato J.A.
Chudoba J.
Cilmo M.
Clay R.W.
Cocciolo G.
Colalillo R.
Collica L.
Coluccia M.R.
Conceičão R.
Contreras F.
Cook H.
Cooper M.J.
Coppens J.
Coutu S.
Covault C.E.
Criss A.
Cronin J.
Curutiu A.
Dallier R.
Daniel B.
Dasso S.
Daumiller K.
Dawson B.R.
De Almeida R.M.
De Domenico M.
De Jong S.J.
De La Vega G.
De Mello Junior W.J.M.
De Mello Neto J.R.T.
De Mitri I.
Publisher(s)
Institute of Physics Publishing
Abstract
To interpret the mean depth of cosmic ray air shower maximum and its dispersion, we parametrize those two observables as functions of the first two moments of the ln A distribution. We examine the goodness of this simple method through simulations of test mass distributions. The application of the parameterization to Pierre Auger Observatory data allows one to study the energy dependence of the mean ln A and of its variance under the assumption of selected hadronic interaction models. We discuss possible implications of these dependences in term of interaction models and astrophysical cosmic ray sources. © 2013 IOP Publishing Ltd and Sissa Medialab srl.
Volume
2013
Issue
2
Language
English
OCDE Knowledge area
Física y Astronomía
Subjects
Scopus EID
2-s2.0-84874723778
Source
Journal of Cosmology and Astroparticle Physics
ISSN of the container
14757516
Sponsor(s)
Seventh Framework Programme (246806) and National Science Foundation (0450696, 1068658, 1068696, 1125897, 1068210, 1212538).
Sources of information:
Directorio de Producción Científica
Scopus