Size spectrum and Lateral Distribution of air showers measuread by ARGO-YBJ at high energies(> 100TeV).

摘要

ARGO-YBJ is able to measure, with its analog readout, just around the core region of the shower, in adensity range which goes from hundreds to many thousands of particles per m2. We remark that no experiment has evermeasured very close to the shower core with an equivalent detail. We will present our first results on size spectrum andlateral distribution in this particle density range.