Tonwar, S. C. ; Gupta, S. K. ; Mohanty, D. M. ; Mohanty, P. K. ; Sivaprasad, K. ; Sreekantan, B. V. ; Hayashi, Y. ; Ito, N. ; Kawakami, S. ; Nonaka, T. ; Tanaka, H. ; Yoshikoshi, T. (2005) A new study on the energy spectrum and composition of primary cosmic ray flux at energies ∼1014 - 1016 ev using the grapes-3 array at Ooty International Journal of Modern Physics A, 20 (29). pp. 6852-6854. ISSN 0217-751X
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Official URL: http://www.worldscinet.com/ijmpa/20/2029/S0217751X...
Related URL: http://dx.doi.org/10.1142/S0217751X05030296
Abstract
Data collected with the 217-detector air shower array and the 560 m2 area tracking muon detector, being operated at Ooty in southern India by the India-Japan (Tata Institute-Osaka City University) collaboration, GRAPES, have been analyzed to study the shape of the energy spectrum and the composition around the knee. It is shown that the muon multiplicity distribution, observed with the highly modular muon detector, permits a relatively reliable measurement on the composition of primary flux which then helps in a more accurate reconstruction of the energy spectrum from the observed shower size spectrum. The highlights of the GRAPES array, the analysis procedure and the results are presented.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to World Scientific Publishing Company. |
| Keywords: | Primary Cosmic Rays; Spectrum and Composition; Extensive Air Showers |
| ID Code: | 50026 |
| Deposited On: | 21 Jul 2011 09:07 |
| Last Modified: | 21 Jul 2011 09:07 |
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