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The Lateral Distribution Function of Shower Signals in the Surface Detector of the Pierre Auger Observatory | | Markus Roth for the Auger Collaboration
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22 Aug 2003 | | Subject: | astro-ph | | Affiliation: | Institut fuer Experimentelle Kernphysik, Universitaet Karlsruhe, Karlsruhe, Germany Observatorio Pierre Auger, Malargue, Argentina | | Abstract: | The surface detector (SD) array of the southern Pierre Auger Observatory will consist of a triangular grid of 1600 water Cherenkov tanks with 1.5 km spacing. For zenith angles less than 60deg the primary energy can be estimated from the signal S(1000) at a distance of about 1000m from the shower axis, solely on basis of SD data. A suitable lateral distribution function (LDF) S(r) is fitted to the signals recorded by the water tanks and used to quantify S(1000). Therefore, knowledge of the LDF is a fundamental requirement for determining the energy of the primary particle. The Engineering Array (EA), a prototype facility consisting of 32 tanks, has taken data continuously since late 2001. On the basis of selected experimental data and Monte Carlo simulations various preliminary LDFs are examined. | | Source: | arXiv, astro-ph/0308392 | | Services: | Forum | Review | PDF | Favorites | |
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