101. Estimate of the primary cosmic ray composition from a multi-parametric fit of MACRO multimuon events
- Author
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Valente, Paolo Lipari, J. Musser, Jl Stone, G. Ludlam, Marco Grassi, A. M. Baldini, F. Cafagna, Am Neri, F.J. Ronga, P. Pistilli, L. Patrizii, G. Mandrioli, Mn Mazziotta, P. Bernardini, R. Pazzi, J. T. Hong, D. G. Michael, Np Longley, M. Calicchio, Halina Bilokon, Marco Monteno, C. E. Lane, M. Goretti, S. Kyriazopoulou, Bisi, S. Cecchini, Alec Habig, Maurizio Spurio, A. Surdo, L. R. Sulak, C. Okada, M. Severi, G. C. Barbarino, E. Kearns, R. C. Webb, P. F. Spada, R. Steinberg, C. R. Bower, A. Corona, Y. Lu, M. Spinetti, C. W. Peck, R. Baker, Eugenio Scapparone, A. Marzari-Chiesa, O. Erriquez, G. Tarle, E. Lamanna, P. Spinelli, C. Bloise, P. Fusco, S. Petrera, Andrea Carlo Marini, Giovanni Mancarella, C. Satriano, G. Auriemma, M. J. Longo, L. Miller, D. Levin, D. Martello, A. Sciubba, G. Osteria, S. Parlati, T. Bosio, M. Mittelbrunn, R. Fantini, O. Palamara, N. D. Pignatano, P. Serra-Lugaresi, B. C. Barish, S. L. Mufson, E. Katsavounidis, I DeMitri, Kate Scholberg, A. Sanzgiri, L. Satta, Kael Hanson, P Guamaccia, Roberto Bellotti, R. Liu, A DiCredico, M. Carboni, M. Ambrosio, F. Guarino, G. Liu, R.M. Heinz, U. Rubizzo, D. Campana, A. Hawthorne, Patera, Severino Angelo Maria Bussino, M. Devincenzi, Donato Nicolo, C. Orth, J. Reynoldson, C. W. Walter, H. Dekhissi, Popa, Chiarella, C. Forti, Fabrizio Cei, M. G. Castellano, G. Giacomelli, G. Battistoni, A. Rainò, R. Nolty, C. Bemporad, F. Sartogo, S P Mikheyev, C. DeMarzo, P. Monacelli, G. Giannini, N. Giglietto, Togo, S. Coutu, R. Antolini, G. DeCataldo, Mario Sitta, C. Gustavino, C. Favuzzi, A. A. Grillo, E. Iarocci, T. Montaruli, Ambrosio, M, Antolini, R, Auriemma, G, Baker, R, Baldini, A, Barbarino, Gc, Barish, Bc, Battistoni, G, Bellotti, R, Bemporad, C, Bernardini, P, Bilokon, H, Bisi, V, Bloise, C, Bosio, T, Bower, C, Bussino, Severino Angelo Maria, Cafagna, F, Calicchio, M, Campana, D, Carboni, M, Castellano, M, Cecchini, S, Cei, F, Chiarella, V, Corona, A, Coutu, S, Decataldo, G, Dekhissi, H, Demarzo, C, Demitri, I, Devincenzi, M, Dicredico, A, Erriquez, O, Fantini, R, Favuzzi, C, Forti, C, Fusco, P, Giacomelli, G, Giannini, G, Giglietto, N, Goretti, M, Grassi, M, Grillo, A, Guarino, F, Guamaccia, P, Gustavino, C, Habig, A, Hanson, K, Hawthorne, A, Heinz, R, Hong, Jt, Iarocci, E, Katsavounidis, E, Kearns, E, Kyriazopoulou, S, Lamanna, E, Lane, C, Levin, D, Lipari, P, Liu, G, Liu, R, Longley, Np, Longo, Mj, Lu, Y, Ludlam, G, Mancarella, G, Mandrioli, G, Neri, Am, Marini, A, Martello, D, Marzarichiesa, A, Mazziotta, Mn, Michael, Dg, Mikheyev, S, Miller, L, Mittelbrunn, M, Monacelli, P, Montaruli, T, Monteno, M, Mufson, S, Musser, J, Nicolo, D, Nolty, R, Okada, C, Orth, C, Osteria, G, Palamara, O, Parlati, S, Patera, V, Patrizii, L, Pazzi, R, Peck, Cw, Petrera, S, Pignatano, Nd, Pistilli, P, Popa, V, Raino, A, Reynoldson, J, Ronga, F, Rubizzo, U, Sanzgiri, A, Sartogo, F, Satriano, C, Satta, L, Scapparone, E, Scholberg, K, Sciubba, A, Serralugaresi, P, Severi, M, Sitta, M, Spada, Pf, Spinelli, P, Spinetti, M, Spurio, M, Steinberg, R, Stone, Jl, Sulak, Lr, Surdo, A, Tarle, G, Togo, V, Valente, V, Walter, Cw, and Webb, R.
- Subjects
Physics ,Nuclear and High Energy Physics ,Multi parametric ,Primary (astronomy) ,Astrophysics::High Energy Astrophysical Phenomena ,Cosmic ray ,MACRO ,Composition (combinatorics) ,Macro ,Muon underground ,Atomic and Molecular Physics, and Optics ,Computational physics - Abstract
Multimuon data from the MACRO experiment at Gran Sasso have been analysed using a new method which allows one to estimate the primary cosmic ray fluxes. The estimated all-particle spectrum is higher and flatter than the one obtained from direct measurements but is consistent with EAS measurements. The average mass number shows a weak dependence on the primary energy below 10^{6} GeV. Even within large uncertainties our data support a possible increase of the average mass number at higher energies.
- Published
- 1996