Contribution Oral (WITHDRAWN)

HE.1.2.B

HE 1.2.B

Study of proton and heavy primaries separation in the ARGO-YBJ experiment

Speakers

Mr. song zhan CHEN

Primary authors

Mr. song zhan CHEN (Key Laboratory of Astroparticle and Cosmic Ray,Institute of High Energy Physics, YuQuan road 19 B, 100049, Beijing, P.R.China)
Ms. Min ZHA (Key Laboratory of Astroparticle and Cosmic Ray,Institute of High Energy Physics, YuQuan road 19 B, 100049, Beijing, P.R.China)
Mr. Huihai HE (Key Laboratory of Astroparticle and Cosmic Ray,Institute of High Energy Physics, YuQuan road 19 B, 100049, Beijing, P.R.China)

Abstract content

With full coverage and high observation altitude, the ARGO-YBJ experiment offer us an opportunity to get further information for the cosmic ray spectrum in the 'knee region' and the spectrum from different primaries. On the base of Monte Carlo Simulation, a large simulation sample are generated. Several parameters are introduced which describe the shower lateral distribution, front plane and thickness. It is shown that the parameters are sensitive to primary masses. An artificial neural network (ANN) is created with these parameters and trained to discriminate between primaries. The preliminary result indicates that proton/iron could be effectively separated.

If this papers is presented for a collaboration, please specify the collaboration

on behalf of ARGO-YBJ collaboration

30th International Cosmic Ray Conference