A multivariate analysis approach for the imaging atmospheric Cherenkov telescopes system H.E.S.S.

Details A multivariate analysis approach for the imaging atmospheric Cherenkov telescopes system H.E.S.S. A multivariate analysis approach for the imaging atmospheric Cherenkov telescopes system H.E.S.S.

Sep 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aph....32...73d&link_type=abstract

Astroparticle Physics, Volume 32, Issue 2, p. 73-88.

Physics

3

Scientific paper

A multivariate particle classification approach is proposed and applied to the analysis of the data from H.E.S.S. (High Energy Stereoscopic System). The combination of results from the three shower reconstruction methods: Hillas, model and 3D-model, leads to a substantial gain in the discrimination power between photons and hadrons. The construction and use of a combined effective estimator improves by several factors the signal-to-background ratio which is extremely important in case of studies of the faint and extended sources. The results of this approach are presented for a typical set of sources. The consequent gain in the sensitivity is shown through a comparison to the H.E.S.S. published results.

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