ULTRAHIGH-ENERGY COSMIC-RAY COMPOSITION FROM SURFACE AIR SHOWER AND UNDERGROUND MUON MEASUREMENTS AT SOUDAN-2

Authors
LONGLEY NP BODE CR BORDER PM COURANT H DEMUTH DM GRAY RN JOHNS K KASAHARA SMS LOWE MJ MARSHAK ML MILLER WH MUALEM L PETERSON EA ROBACK DM RUDDICK K SCHMID DJ SCHAUB MH SHUPE MA VASSILIEV V VILLAUME G WERKEMA SJ AYRES DS FIELDS TH GALLAGHER HM GOODMAN MC LOPEZ FV MAY EN PRICE LE SEIDLEIN RV THRON JL TROST HJ URETSKY JL ALLISON WWM BARR GD BROOKS CB COBB JH GILLER GL STASSINAKIS A THOMSON MA WEST N WIELGOSZ U ALNER GJ COCKERILL DJA COTTON RJ GARCIAGARCIA C LITCHFIELD PJ PEARCE GF EWEN B KAFKA T KOCHOCKI J LEESON W MANN WA MILBURN RH NAPIER A OLIVER W SAITTA B SCHNEPS J SUNDARALINGAM N BARRETT WL
Citation
Np. Longley et al., ULTRAHIGH-ENERGY COSMIC-RAY COMPOSITION FROM SURFACE AIR SHOWER AND UNDERGROUND MUON MEASUREMENTS AT SOUDAN-2, Physical review. D. Particles and fields, 52(5), 1995, pp. 2760-2765
Citations number
21
Categorie Soggetti
Physics, Particles & Fields
Journal title
Physical review. D. Particles and fields → ACNP
ISSN journal
05562821
Volume
52
Issue
5
Year of publication
1995
Pages
2760 - 2765
Database
ISI
SICI code
0556-2821(1995)52:5<2760:UCCFSA>2.0.ZU;2-K
Abstract
The Soudan 2 experiment has performed time-coincident cosmic ray air s hower and underground muon measurements. Comparisons to Monte Carlo pr edictions show that such measurements can make statistically significa nt tests of the primary composition in the knee region of the cosmic r ay spectrum. The results do not support any significant increase in th e average primary mass with energy in the range of similar to 10(4) Te V per nucleus. Some systematic uncertainties remain, however, particul arly in the Monte Carlo modeling of the cosmic ray shower.