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EAS age determination from the study of the lateral distribution of charged particles near the shower axis with the ARGO-YBJ experiment | | ARGO-YBJ Collaboration
; B. Bartoli
; P. Bernardini
; X.J. Bi
; Z. Cao
; S. Catalanotti
; S.Z. Chen
; T.L. Chen
; S.W. Cui
; B.Z. Dai
; A. D'Amone
; Danzengluobu
; I. De Mitri
; B. D'Ettorre Piazzoli
; T. Di Girolamo
; G. Di Sciascio
; C.F. Feng
; Zhaoyang Feng
; Zhenyong Feng
; Q.B. Gou
; Y.Q. Guo
; H.H. He
; Haibing Hu
; Hongbo Hu
; M. Iacovacci
; R. Iuppa
; H.Y. Jia
; Labaciren
; H.J. Li
; C. Liu
; J. Liu
; M.Y. Liu
; H. Lu
; L.L. Ma
; X.H. Ma
; G. Mancarella
; S.M. Mari
; G. Marsella
; S. Mastroianni
; P. Montini
; C.C. Ning
; L. Perrone
; P. Pistilli
; P. Salvini
; R. Santonico
; P.R. Shen
; X.D. Sheng
; F. Shi
; A. Surdo
; Y.H. Tan
; P. Vallania
; S. Vernetto
; C. Vigorito
; H. Wang
; C.Y. Wu
; H.R. Wu
; L. Xue
; Q.Y. Yang
; X.C. Yang
; Z.G. Yao
; A.F. Yuan
; M. Zha
; H.M. Zhang
; L. Zhang
; X.Y. Zhang
; Y. Zhang
; J. Zhao
; Zhaxiciren
; Zhaxisangzhu
; X.X. Zhou
; F.R. Zhu
; Q.Q. Zhu
; | | Date: |
5 Jul 2017 | | Abstract: | The ARGO-YBJ experiment, a full coverage extensive air shower (EAS) detector
located at high altitude (4300 m a.s.l.) in Tibet, China, has smoothly taken
data, with very high stability, since November 2007 to the beginning of 2013.
The array consisted of a carpet of about 7000 m$^2$ Resistive Plate Chambers
(RPCs) operated in streamer mode and equipped with both digital and analog
readout, providing the measurement of particle densities up to few particles
per cm$^2$. The unique detector features (full coverage, readout granularity,
wide dynamic range, etc) and location (very high altitude) allowed a detailed
study of the lateral density profile of charged particles at ground very close
to the shower axis and its description by a proper lateral distribution
function (LDF). In particular, the information collected in the first 10 m from
the shower axis have been shown to provide a very effective tool for the
determination of the shower development stage ("age") in the energy range 50
TeV - 10 PeV. The sensitivity of the age parameter to the mass composition of
primary Cosmic Rays is also discussed. | | Source: | arXiv, 1707.1412 | | Services: | Forum | Review | PDF | Favorites | |
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