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Shower Studies at around $10^{18}$ eV with the Surface Detector of the Pierre Auger Observatory

P-L. Ghia M.A. Mostafa B. Fick M. Ave A. Letessier X. Bertou O. Deligny C. Lachaud E. Altmann P. Alvarez P. Bauleo C. Bonifazi A. Etchegoyen R. Eusebi N. Fazzini A. Ferrero A. Filevich A. Reguera A. Cillis M.T. Dova L.N. Epele C. Grunfeld A. Mariazzi N. Martinez E. Roulet S.J. Sciutto A. Veiga I. Allekotte G. Avila L. Masperi M. Orsaria A. Rovero R.W. Clay B.R. Dawson R. Pace D. Riordan G.J. Thornton N.R. Wild C. Boutonnet 1 J.M. Brunet 1 J.N. Capdevielle 1 F. Cohen 1 B. Courty 1 L. Guglielmi 1 J.J. Jaeger 1 Benoît Revenu G. Tristram 1 J. Waisbard 1 P. Billoir M. Boratav A. Castera S. Dagoret-Campagne B. Genolini 2 Fabrice Lefebvre 2 I. Lhenry-Yvon 2 T.N. Trung 2 E. Parizot 2 J. Pouthas 2 T. Suomijarvi 2 J.N. Albert C. Arnault R. Bilhaut A. Cordier E. Cormier P. Eschstruth O. Jouniaux B. Lavigne Oleg Lodygensky J. Rypko Martin Urban H. Bluemer E. Bollmann T. Csabo A. Grindler R. Gumbsheimer D. Heck H. Hucker H. Kern H.O. Klages J. Kleinfeller H.J. Mathes P. Matussek I. Michel-Piper M. Risse G. Schleif T. Thouw M. Balzer R. Berg D. Bormann H. Gemmeke H. Giraud M. Kleifges A. Kopmann N. Kunka A. Menchikov B. Osswald U. Remmel D. Tscherniakhovski N. Barenthien K.H. Kampert B. Keilhauer S. Argiro D.V. Camin C. Guerard M. Ambrosio C. Bernardini P. Facal R. Filosofi M. Fois G. Matthiae P. Privitera G. Salina G. Borreani R. Cester E. Menichetti N. Pastrone C. Aramo E. Cangiano R. Fonte A. Insolia G. Raia D. Gora P. Homola M. Kutschera M. Ostrowski B. Wilczynska H. Wilczynski I. Arcon A. Filipcic D. Zavrtanik M. Zavrtanik P. Clark L. de Bruijn J. Knapp J. Lloyd-Evans M. Patel V. Tunnicliffe P. Walker A. Watson K. Arisaka Y. Bonushkin J. Kubic W. Slater A. Tripathi J. Brack G. Hofman R. Ristinen J. Harton J. Sites D. Warner R. Wilson J.W. Cronin K. Gibbs M. Albrow R. Andrews E. Berman D. Hoffer H. Glass C. Hojvat P. Mantsch P. Mazur H. Spinka L. Voyvodic J.M. Matthews M. Mcewen R. Meyhandan J. Darling A. Dorofeev B. Nemiroff D. Nitz B. Rafert S. Ruotsala Z. Szadkowski M. Trombley B. Dieterle J. Matthews S. Riley M. Roberts P. Allison J. Beatty S. Coutu M. Duvernois G. Cassiday P. Sommers Luis. Anchordoqui M. Machacek T. Paul J. Swain L. Taylor A. Akhperjanian A. Chilingarian G. Hovsepian E. Mnatzakanian V. Sahakian S. Ter-Antonian C. Aguirre R. Bustos K. Choque A. Ticona R. Ticona A. Velarde D.Q. Thieu P. Darriulat N. Chung N.T. Dzung P.N. Dinh P.T. Phuong V.V. Thuan
1 PCC - Physique Corpusculaire et Cosmologie - Collège de France
2 IPNO - Institut de Physique Nucléaire d'Orsay
Abstract : Three months of data taken by the Engineering Array Surface Detector of the Pierre Auger Observatory have been analyzed with the aim of setting a procedure for the study of showers at E_0 ~ 10^18 eV. We present the results, concerning: (i) the selection procedure and the check of its efficiency; (ii) the event rate and its stability; (iii) the characteristics of such events (i.e., angular direction, energy estimator S(1000), rise time vs core distance, correlation with pressure) showing their consistency with the expectations. The performances of the whole Surface Detector of the Auger Observatory are discussed.
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Submitted on : Tuesday, October 7, 2003 - 4:42:47 PM
Last modification on : Friday, October 22, 2021 - 4:29:32 AM

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P-L. Ghia, M.A. Mostafa, B. Fick, M. Ave, A. Letessier, et al.. Shower Studies at around $10^{18}$ eV with the Surface Detector of the Pierre Auger Observatory. International Cosmic Ray Conference 28 ICRC 2003, Jul 2003, Tsukuba, Japan. pp.337-340. ⟨in2p3-00014042⟩

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