The Lateral Trigger Probability function for the ultra-high energy cosmic ray showers detected by the pierre auger observatory

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...

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Acceso en línea:http://hdl.handle.net/20.500.12110/paper_09276505_v35_n5_p266_Multitudinario
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spelling todo:paper_09276505_v35_n5_p266_Multitudinario2023-10-03T15:46:59Z The Lateral Trigger Probability function for the ultra-high energy cosmic ray showers detected by the pierre auger observatory Multitudinario:493 Extensive air showers Hybrid detector Pierre Auger Observatory Surface detector Trigger performance Ultra-high Energy Cosmic Rays Augers Cosmic ray detectors Cosmology Intelligent systems Monte Carlo methods Observatories Particle detectors Probability Extensive air showers Hybrid detectors Pierre Auger observatory Surface detectors Trigger performance Ultra high-energy cosmic rays Cosmic rays 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°. 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. © 2011 Published by Elsevier B.V. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_09276505_v35_n5_p266_Multitudinario
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Extensive air showers
Hybrid detector
Pierre Auger Observatory
Surface detector
Trigger performance
Ultra-high Energy Cosmic Rays
Augers
Cosmic ray detectors
Cosmology
Intelligent systems
Monte Carlo methods
Observatories
Particle detectors
Probability
Extensive air showers
Hybrid detectors
Pierre Auger observatory
Surface detectors
Trigger performance
Ultra high-energy cosmic rays
Cosmic rays
spellingShingle Extensive air showers
Hybrid detector
Pierre Auger Observatory
Surface detector
Trigger performance
Ultra-high Energy Cosmic Rays
Augers
Cosmic ray detectors
Cosmology
Intelligent systems
Monte Carlo methods
Observatories
Particle detectors
Probability
Extensive air showers
Hybrid detectors
Pierre Auger observatory
Surface detectors
Trigger performance
Ultra high-energy cosmic rays
Cosmic rays
Multitudinario:493
The Lateral Trigger Probability function for the ultra-high energy cosmic ray showers detected by the pierre auger observatory
topic_facet Extensive air showers
Hybrid detector
Pierre Auger Observatory
Surface detector
Trigger performance
Ultra-high Energy Cosmic Rays
Augers
Cosmic ray detectors
Cosmology
Intelligent systems
Monte Carlo methods
Observatories
Particle detectors
Probability
Extensive air showers
Hybrid detectors
Pierre Auger observatory
Surface detectors
Trigger performance
Ultra high-energy cosmic rays
Cosmic rays
description 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°. 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. © 2011 Published by Elsevier B.V.
format JOUR
author Multitudinario:493
author_facet Multitudinario:493
author_sort Multitudinario:493
title The Lateral Trigger Probability function for the ultra-high energy cosmic ray showers detected by the pierre auger observatory
title_short The Lateral Trigger Probability function for the ultra-high energy cosmic ray showers detected by the pierre auger observatory
title_full The Lateral Trigger Probability function for the ultra-high energy cosmic ray showers detected by the pierre auger observatory
title_fullStr The Lateral Trigger Probability function for the ultra-high energy cosmic ray showers detected by the pierre auger observatory
title_full_unstemmed The Lateral Trigger Probability function for the ultra-high energy cosmic ray showers detected by the pierre auger observatory
title_sort lateral trigger probability function for the ultra-high energy cosmic ray showers detected by the pierre auger observatory
url http://hdl.handle.net/20.500.12110/paper_09276505_v35_n5_p266_Multitudinario
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AT multitudinario493 lateraltriggerprobabilityfunctionfortheultrahighenergycosmicrayshowersdetectedbythepierreaugerobservatory
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