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Titolo:
HIGH-ENERGY COSMIC-RAY PHYSICS WITH UNDERGROUND MUONS IN MACRO .2. PRIMARY SPECTRA AND COMPOSITION
Autore:
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 S; 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; GUARNACCIA 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 DS; LIPARI P; LONGLEY NP; LONGO MJ; MANCARELLA G; MANDRIOLI G; MARGIOTTANERI A; MARINI A; MARTELLO D; MARZARICHIESA A; MAZZIOTTA MN; MICHAEL DG; MIKHEYEV S; MILLER L; 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; PISTILLI P; POPA V; RAINO A; REYNOLDSON J; RICCIARDI M; RONGA F; RUBIZZO U; SANZGIRI A; SARTOGO F; SATRIANO C; SATTA L; SCAPPARONE E; SCHOLBERG K; SCIUBBA A; SERRALUGARESI P; SEVERI M; SITTA R; SPINELLI P; SPINETTI M; SPURIO M; STEINBERG R; STONE JL; SULAK LR; SURDO A; TARLE G; TOGO V; VALENTE V; WALTER CW; WEBB R;
Indirizzi:
UNIV NAPLES,DIPARTIMENTO FIS I-80125 NAPLES ITALY IST NAZL FIS NUCL I-80125 NAPLES ITALY UNIV BARI,DIPARTMENTO FIS I-70126 BARI ITALY IST NAZL FIS NUCL I-70126 BARI ITALY UNIV BOLOGNA,DIPARTMENTO FIS I-40126 BOLOGNA ITALY IST NAZL FIS NUCL I-40126 BOLOGNA ITALY BOSTON UNIV,DEPT PHYS BOSTON MA 02215 CALTECH PASADENA CA 91125 DREXEL UNIV,DEPT PHYS PHILADELPHIA PA 19104 IST NAZL FIS NUCL,LAB NAZL FRASCATI I-00044 FRASCATI ITALY IST NAZL FIS NUCL,LAB NAZL GRAN SASSO I-67010 ASSERGI LAQUILA ITALY INDIANA UNIV,DEPT PHYS BLOOMINGTON IN 47405 INDIANA UNIV,DEPT ASTRON BLOOMINGTON IN 47405 UNIV AQUILA,DIPARTMENTO FIS I-67100 LAQUILA ITALY IST NAZL FIS NUCL I-67100 LAQUILA ITALY UNIV LECCE,DIPARTIMENTO FIS I-73100 LECCE ITALY IST NAZL FIS NUCL I-73100 LECCE ITALY UNIV MICHIGAN,DEPT PHYS ANN ARBOR MI 48109 IST NAZL FIS NUCL I-56010 PISA ITALY UNIV PISA,DIPARTIMENTO FIS I-56010 PISA ITALY UNIV ROMA LA SAPIENZA,DIPARTIMENTO FIS I-00185 ROME ITALY IST NAZL FIS NUCL I-00185 ROME ITALY TEXAS A&M UNIV,DEPT PHYS COLLEGE STN TX 77843 UNIV TURIN,DIPARTIMENTO FIS SPERIMENTALE I-10125 TURIN ITALY IST NAZL FIS NUCL I-10125 TURIN ITALY SWARTHMORE COLL SWARTHMORE PA 19081
Titolo Testata:
Physical review. D. Particles and fields
fascicolo: 3, volume: 56, anno: 1997,
pagine: 1418 - 1436
SICI:
0556-2821(1997)56:3<1418:HCPWUM>2.0.ZU;2-A
Fonte:
ISI
Lingua:
ENG
Soggetto:
DUAL PARTON MODEL; MASS COMPOSITION; CASCADES; SIMULATION; EVENTS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
56
Recensione:
Indirizzi per estratti:
Citazione:
M. Ambrosio et al., "HIGH-ENERGY COSMIC-RAY PHYSICS WITH UNDERGROUND MUONS IN MACRO .2. PRIMARY SPECTRA AND COMPOSITION", Physical review. D. Particles and fields, 56(3), 1997, pp. 1418-1436

Abstract

Multimuon data from the MACRO experiment at Gran Sasso have been analyzed 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 array measurements. The spectral indexes of the fitted energy spectrum are 2.56 +/- 0.05 for E < 500 TeV and 2.9 +/- 0.3 for E > 5000TeV with a gradual change at intermediate energies. The average mass number shows little dependence on the primary energy below 1000 TeV, with a value of 10.1 +/- 2.5 at 100 TeV. At higher energies the best fit average mass shows a mild increase with energy, even though no definite conclusion can be reached taking into account errors. The fitted spectra cover a range from similar to 50 TeV up to several thousand TeV.

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Documento generato il 01/12/20 alle ore 07:47:17