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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2011
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09276505_v35_n5_p266_Multitudinario http://hdl.handle.net/20.500.12110/paper_09276505_v35_n5_p266_Multitudinario |
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paper:paper_09276505_v35_n5_p266_Multitudinario2023-06-08T15:51:54Z The Lateral Trigger Probability function for the ultra-high energy cosmic ray showers detected by the pierre auger observatory 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. 2011 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09276505_v35_n5_p266_Multitudinario 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 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. |
| 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 |
| publishDate |
2011 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09276505_v35_n5_p266_Multitudinario http://hdl.handle.net/20.500.12110/paper_09276505_v35_n5_p266_Multitudinario |
| _version_ |
1768543476368015360 |