Cosmic ray physics with the ARGO-YBJ experiment

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Abstract

The main scientific goals of the ARGO-YBJ experiment are ray astronomy with a few hundreds GeV energy threshold and cosmic ray physics below and around the knee of the primary energy spectrum (10**12−10**16 eV), where the transition from direct to indirect measurement techniques takes place. The ARGO-YBJ experiment, located at the Cosmic Ray Observatory of Yangbajing (Tibet, P.R. of China, 4 300 m a.s.l.), is an unconventional Extensive Air Shower array of about 6,700 m2 of active area, the only one exploiting the full-coverage technique at very high altitude currently in operation. The detector space-time granularity, performance and location offer a unique chance to make a detailed study of the structure of cosmic ray showers, in particular of the hadronic component. In this work we will focus on the main experimental results concerning cosmic ray and hadronic interaction physics: primary cosmic ray energy spectrum, antiproton over proton ratio, anisotropy in the cosmic ray flux and proton-air cross-section. Moreover, the possible data analysis improvements based on the use of all detailed information on the shower front (curvature, time width, rise time and so on), as well as the extension of the investigable energy range, allowed by the analog RPC readout, will be pointed out.

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  • B. Bartoli , P. Bernardini , X.J. Bi , C. Bleve , I. Bolognino , P. Branchini , A. Budano , A.K. Calabrese Melcarne , P. Camarri , Z. Cao , A. Cappa , R. Cardarelli , S. Catalanotti , C. Cattaneo , P. Celio , S.Z. Chen , T.L. Chen , Y. Chen , P. Creti , S.W. Cui , B.Z. Dai , G. D’Alì Staiti , Danzengluobu , M. Dattoli , I. De Mitri , B. D’Ettorre Piazzoli , T. Di Girolamo , X.H. Ding , G. Di Sciascio , C.F. Feng , Zhaoyang Feng , Zhenyong Feng , F. Galeazzi , P. Galeotti , E. Giroletti , Q.B. Gou , Y.Q. Guo , H.H. He , Haibing Huo , Hongbo Hue , Q. Huang , M. Iacovacci , R. Iuppa , I. James , H.Y. Jia , Labaciren , H.J. Li , J.Y. Li , X.X.Li , G. Liguori , C. Liu , C.Q. Liu , J. Liu , M.Y. Liu , H. Lu , X.H. Ma , G. Mancarella , S.M. Mari , G. Marsella , D. Martello , S. Mastroianni , P. Montini , C.C. Ning , A. Pagliaro , M. Panareo , B. Panico , L. Perrone , P. Pistilli , X.B. Qu , E. Rossi , F. Ruggieri , P. Salvini , R. Santonico , P.R. Shen , X.D. Sheng , F. Shi , C. Stanescu , A. Surdo , Y.H. Tan , P. Vallania , S. Vernetto , C. Vigorito , B. Wang , H. Wang , C.Y. Wu , H.R. Wu , B. Xu , L. Xue , Y.X. Yan , Q.Y. Yang , X.C. Yang , Z.G. Yao , A.F. Yuan , M. Zha , H.M. Zhang , JilongZhang , JianliZhang , L. Zhang , P. Zhang , X.Y. Zhang , Y. Zhang , Zhaxiciren , Zhaxisangzhu , X.X. Zhou , F.R. Zhu , Q.Q. Zhu , G. Zizzi

Titolo volume/Rivista

ASTROPHYSICS AND SPACE SCIENCES TRANSACTIONS

Anno di pubblicazione

2011

ISSN

1810-6528

ISBN

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Numero di citazioni Wos

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Settori ERC

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Codici ASJC

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