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The Lateral Trigger Probability function for the Ultra-High Energy Cosmic Ray showers detected by the Pierre Auger Observatory

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The Lateral Trigger Probability function for the Ultra-High Energy Cosmic Ray showers detected by the Pierre Auger Observatory

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dc.contributor.author The Pierre Auger Collaboration
dc.contributor.author Pastor Carpi, Sergio
dc.date.accessioned 2015-11-03T11:07:42Z
dc.date.available 2015-11-03T11:07:42Z
dc.date.issued 2011
dc.identifier.citation The Pierre Auger Collaboration Pastor Carpi, Sergio 2011 The Lateral Trigger Probability function for the Ultra-High Energy Cosmic Ray showers detected by the Pierre Auger Observatory Astroparticle Physics 35 5 266 276
dc.identifier.uri http://hdl.handle.net/10550/48007
dc.description.abstract In this paper we introduce the concept of Lateral Trigger Probability (LTP) function, i.e., the probability for an extensive air shower (EAS) to trigger an individual detector of a ground based array as a function of distance to the shower axis, taking into account energy, mass and direction of the primary cosmic ray. We apply this concept to the surface array of the Pierre Auger Observatory consisting of a 1.5 km spaced grid of about 1600 water Cherenkov stations. Using Monte Carlo simulations of ultra-high energy showers the LTP functions are derived for energies in the range between 10^17 and 10^19 eV and zenith angles up to 65 degs. A parametrization combining a step function with an exponential is found to reproduce them very well in the considered range of energies and zenith angles. The LTP functions can also be obtained from data using events simultaneously observed by the fluorescence and the surface detector of the Pierre Auger Observatory (hybrid events). We validate the Monte-Carlo results showing how LTP functions from data are in good agreement with simulations.
dc.language.iso eng
dc.relation.ispartof Astroparticle Physics, 2011, vol. 35, num. 5, p. 266-276
dc.subject Física
dc.title The Lateral Trigger Probability function for the Ultra-High Energy Cosmic Ray showers detected by the Pierre Auger Observatory
dc.type journal article es_ES
dc.date.updated 2015-11-03T11:07:42Z
dc.identifier.doi 10.1016/j.astropartphys.2011.08.001
dc.identifier.idgrec 070776
dc.rights.accessRights open access es_ES

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