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STATUS Of the monoscopic analysis chains for H.E.S.S. II

  • FOR THE H.E.S.S. COLLABORATION
  • University of Potsdam
  • c/o DESY
  • University of Heidelberg
  • Humboldt-Universität zu Berlin
  • Max-Planck-Institut für Kernphysik

Résultats de recherche: Le chapitre dans un livre, un rapport, une anthologie ou une collectionContribution à une conférenceRevue par des pairs

Résumé

H.E.S.S. is a system of Imaging Atmospheric Cherenkov Telescopes (IACTs) measuring cosmic gamma-rays with very high energies in Namibia. Extending the array with a fifth telescope with a mirror area of 600m2 leads to a lower energy threshold as well as an increased sensitivity of the system. Moreover, it is now the first IACT array consisting of telescopes with different sizes. Low-energetic gamma-rays detected by the telescopes can either be analyzed monoscopically, allowing for a lower threshold, or stereoscopically, using hybrid events only which leads to a better reconstruction performance. We present the status of the monoscopic analysis of H.E.S.S. II events. In order to cross-check the results, we use two independent analysis chains, based on different reconstruction methods. The first method uses the second moments of the cleaned camera image (Hillas parameters) in order to deduce the properties of the primary particle. The background discrimination of this method can be optimized with multi-variate analysis techniques. The second method is based on the comparison of the camera image with the results of a semi-analytical model of the air shower using a Loglikelihood-Maximization. We present the status of these analysis efforts and their respective performances. One of the chains has been applied on real data of the Crab Nebula. All results shown here have to be considered preliminary.

langue originaleAnglais
titreProceedings of the 33rd International Cosmic Rays Conference, ICRC 2013
EditeurSociedade Brasileira de Fisica
ISBN (Electronique)9788589064293
étatPublié - 1 janv. 2013
Modification externeOui
Evénement33rd International Cosmic Rays Conference, ICRC 2013 - Rio de Janeiro, Brésil
Durée: 2 juil. 20139 juil. 2013

Série de publications

NomProceedings of the 33rd International Cosmic Rays Conference, ICRC 2013
Volume2013-October

Une conférence

Une conférence33rd International Cosmic Rays Conference, ICRC 2013
Pays/TerritoireBrésil
La villeRio de Janeiro
période2/07/139/07/13

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