Measurement of air shower cores to study the cosmic ray composition in theknee energy region - art. no. 072007

Citation
M. Amenomori et al., Measurement of air shower cores to study the cosmic ray composition in theknee energy region - art. no. 072007, PHYS REV D, 6207(7), 2000, pp. 2007
Citations number
23
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW D
ISSN journal
0556-2821 → ACNP
Volume
6207
Issue
7
Year of publication
2000
Database
ISI
SICI code
0556-2821(20001001)6207:7<2007:MOASCT>2.0.ZU;2-C
Abstract
Since 1996, a hybrid experiment consisting of an emulsion chamber and a bur st detector array and the Tibet-II air-shower array has been operated at Ya ngbajing (4300 m above sea level) in Tibet. This experiment can detect air shower cores, called burst events, accompanied by air showers in excess of about 100 TeV. Using the burst event data observed by this experiment, we d iscuss the primary cosmic ray composition around the knee in comparison wit h the Monte Carlo simulations. In this paper, we show that all the features of burst events are wholly compatible with the heavy enriched composition in the knee energy region.