COMPOSITION OF PRIMARY COSMIC RAYS BEYOND THE KNEE FROM EMULSION CHAMBER OBSERVATIONS

Authors
COSTA CGS HALZEN F BELLANDI J SALLES C
Citation
Cgs. Costa et al., COMPOSITION OF PRIMARY COSMIC RAYS BEYOND THE KNEE FROM EMULSION CHAMBER OBSERVATIONS, Physical review. D. Particles and fields, 54(9), 1996, pp. 5558-5562
Citations number
29
Categorie Soggetti
Physics, Particles & Fields
Journal title
Physical review. D. Particles and fields → ACNP
ISSN journal
05562821
Volume
54
Issue
9
Year of publication
1996
Pages
5558 - 5562
Database
ISI
SICI code
0556-2821(1996)54:9<5558:COPCRB>2.0.ZU;2-2
Abstract
We show that the simplest assumptions for the dynamics of particle pro duction allow us to understand the fluxes of hadrons and photons at mo untain altitudes as well as the structure of individual events. The. a nalysis requires a heavy nuclear component of primary cosmic rays abov e the ''knee'' in the spectrum with an average mass number [A] = 7.3+/ -0.9.