Atmospheric effects on extensive air showers observed with the surface detector of the Pierre Auger Observatory

Atmospheric parameters, such as pressure (<i>P</i>), temperature (<i>T</i>) and density (<i>ρ ∝ P/T</i>), affect the development of extensive air showers initiated by energetic cosmic rays. We have studied the impact of atmospheric variations on extensive air show...

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Detalles Bibliográficos
Autores principales: Badagnani, Daniel Omar, Dova, María Teresa, Gómez Albarracín, Flavia Alejandra, Hansen, Patricia María, Mariazzi, Analisa Gabriela, Moreno, Juan Cruz, Sciutto, Sergio Juan, Tarutina, Tatiana, Tueros, Matías Jorge, Wahlberg, Hernán Pablo, The Pierre Auger Collaboration
Formato: Articulo
Lenguaje:Inglés
Publicado: 2009
Materias:
Física
Extensive air showers
Clima
Presión Atmosférica
Radiación Cósmica
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/79556
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-79556
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Física
Extensive air showers
Clima
Presión Atmosférica
Radiación Cósmica
spellingShingle Física
Extensive air showers
Clima
Presión Atmosférica
Radiación Cósmica
Badagnani, Daniel Omar
Dova, María Teresa
Gómez Albarracín, Flavia Alejandra
Hansen, Patricia María
Mariazzi, Analisa Gabriela
Moreno, Juan Cruz
Sciutto, Sergio Juan
Tarutina, Tatiana
Tueros, Matías Jorge
Wahlberg, Hernán Pablo
The Pierre Auger Collaboration
Atmospheric effects on extensive air showers observed with the surface detector of the Pierre Auger Observatory
topic_facet Física
Extensive air showers
Clima
Presión Atmosférica
Radiación Cósmica
description Atmospheric parameters, such as pressure (<i>P</i>), temperature (<i>T</i>) and density (<i>ρ ∝ P/T</i>), affect the development of extensive air showers initiated by energetic cosmic rays. We have studied the impact of atmospheric variations on extensive air showers by means of the surface detector of the Pierre Auger Observatory. The rate of events shows a ∼ 10% seasonal modulation and ∼ 2% diurnal one. We find that the observed behaviour is explained by a model including the effects associated with the variations of <i>P</i> and <i>ρ</i>. The former affects the longitudinal development of air showers while the latter influences the Molière radius and hence the lateral distribution of the shower particles. The model is validated with full simulations of extensive air showers using atmospheric profiles measured at the site of the Pierre Auger Observatory.
format Articulo
Articulo
author Badagnani, Daniel Omar
Dova, María Teresa
Gómez Albarracín, Flavia Alejandra
Hansen, Patricia María
Mariazzi, Analisa Gabriela
Moreno, Juan Cruz
Sciutto, Sergio Juan
Tarutina, Tatiana
Tueros, Matías Jorge
Wahlberg, Hernán Pablo
The Pierre Auger Collaboration
author_facet Badagnani, Daniel Omar
Dova, María Teresa
Gómez Albarracín, Flavia Alejandra
Hansen, Patricia María
Mariazzi, Analisa Gabriela
Moreno, Juan Cruz
Sciutto, Sergio Juan
Tarutina, Tatiana
Tueros, Matías Jorge
Wahlberg, Hernán Pablo
The Pierre Auger Collaboration
author_sort Badagnani, Daniel Omar
title Atmospheric effects on extensive air showers observed with the surface detector of the Pierre Auger Observatory
title_short Atmospheric effects on extensive air showers observed with the surface detector of the Pierre Auger Observatory
title_full Atmospheric effects on extensive air showers observed with the surface detector of the Pierre Auger Observatory
title_fullStr Atmospheric effects on extensive air showers observed with the surface detector of the Pierre Auger Observatory
title_full_unstemmed Atmospheric effects on extensive air showers observed with the surface detector of the Pierre Auger Observatory
title_sort atmospheric effects on extensive air showers observed with the surface detector of the pierre auger observatory
publishDate 2009
url http://sedici.unlp.edu.ar/handle/10915/79556
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