Please use this identifier to cite or link to this item:
http://repositorio.unicamp.br/jspui/handle/REPOSIP/96214
Type: | Artigo de periódico |
Title: | Study Of The Primary Cosmic Ray Composition Around The Knee Of The Energy Spectrum |
Author: | Aglietta M. Alessandro B. Antonioli P. Arneodo F. Bergamasco L. Bertaina M. Fauth A.C. Castagnoli C. Castellina A. Cattadori C. Chiavassa A. Cini G. D'Ettorre Piazzoli B. Di Sciascio G. Fulgione W. Galeotti P. Ghia P.L. Iacovacci M. Mannocchi G. Melagrana C. Morello C. Navarra G. Riccati L. Saavedra O. Trinchero G.C. Vallania P. Vernetto S. Ahlen S. Ambrosio M. Antolini R. Auriemma G. Baker R. Baldini A. Barbarino G.C. Barish B.C. Battistoni G. Bellotti R. Bemporad C. Bernardini P. Bilokon H. Bisi V. Bloise C. Bower C. Bussino S. Cafagna F. Calicchio M. Campana D. Carboni M. Cecchini S. Cei F. Chiarella V. Cormack R. Corona A. Coutu S. DeCataldo G. Dekhissi H. DeMarzo C. De Mitri M. De Vincenzi M. Di Credico A. Diehl E. Erriquez O. Favuzzi C. Ficenec D. Forti C. Fusco P. Giacomelli G. Giannini G. Giglietto N. Goretti M. Grassi M. Green P. Grillo A. Guarino F. Guarnaccia P. Gustavino C. Habig A. Hanson K. Heinz R. Hong J.T. Iarocci E. Katsavounidis E. Kearns E. Klein S. Kyriazopoulou S. Lamanna E. Lane C. Levin D.S. Lipari P. Liu G. Liu R. Longo M.J. Lu Y. Ludlam G. Mancarella G. Mandrioli G. Margiotta-Neri A. Marin A. Marini A. Martello D. Chiesa A.M. Matteuzzi P. Mazziotta M.N. Michael D.G. Mikheyev S. Miller L. Mittelbrun M. Monacelli P. Montaruli T. Monteno M. Mufson S. Musser J. Nicolo D. Nolty R. Nutter S. Okada C. Osteria G. Palamara O. Parlati S. Patera V. Patrizii L. Pavesi B. Pazzi R. Peck C.W. Petrakis J. Petrera S. Pignatano N.D. Pistilli P. Raino A. Reynoldson J. Ronga F. Sanzani G. Sanzgiri A. Sartogo F. Satriano C. Satta L. Scapparone E. Scholberg K. Sciubba A. Lugaresi P.S. Severi M. Sitta M. Spinelli P. Spinetti M. Spurio M. Steele J. Steinberg R. Stone J.L. Sulak L.R. Surdo A. Tarle G. Togo V. Valente V. Walter C.W. Webb R. Worstell W. |
Abstract: | A study of the primary cosmic ray composition in the energy range 5ṡ1014-5ṡ1015 eV is performed through the analysis of the deep underground muons and of the e.m. component of Extensive Air Showers detected in coincidence by the MACRO and EAS-TOP experiments at the Gran Sasso Laboratory. We conclude that: a) pure proton and Iron primary beams are excluded by the experimental data; b) a fraction of nuclei heavier than Helium is necessary to explain the experimental data both below and above the knee; c) a mixed composition, obtained a priori from extrapolations of the spectra directly measured below 100 TeV, yields a reasonable account of the observations up to the knee of the primary spectrum. © 1994. |
Citation: | Physics Letters B. , v. 337, n. 3-4, p. 376 - 382, 1994. |
Rights: | aberto |
Identifier DOI: | 10.1016/0370-2693(94)90991-1 |
Address: | http://www.scopus.com/inward/record.url?eid=2-s2.0-4243235886&partnerID=40&md5=28c469b8d72cf0097758b3a8da7d9d4d |
Date Issue: | 1994 |
Appears in Collections: | Unicamp - Artigos e Outros Documentos |
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File | Description | Size | Format | |
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2-s2.0-4243235886.pdf | 573.01 kB | Adobe PDF | View/Open |
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