Asymmetries observed in giant air showers using water Cherenkov detectors

Autores
Dova, María Teresa; The Pierre Auger Collaboration
Año de publicación
2003
Idioma
español castellano
Tipo de recurso
documento de conferencia
Estado
versión publicada
Descripción
Evidence of azimuthal asymmetries in the time structure and signal size has been found in non-vertical showers as a function of zenith angle. These asymmetries arise because of the different paths traveled by particles in the upper and lower sides of the plane perpendicular to the shower axis to reach detectors at the same axial distances. The shower particles are differentially attenuated as they traverse the atmosphere. Furthermore, most particles are not propagating strictly in the shower direction but are on average going away from the axis. This geometrical projection effect also contributes to the final asymmetry. These novel observations must be understood for parameterisation of the lateral distribution function. Additionally, the asymmetry in time distributions offers a new possibility for the determination of the mass composition because its magnitude is strongly dependent on the fraction of electromagnetic signal at the observation level. The asymmetries found in data collected from the Engineering Array of the Auger Observatory will be compared with Monte Carlo data.
Facultad de Ciencias Exactas
Materia
Ciencias Exactas
Física
asymmetry
Cascada atmosférica extensa
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/81753
Acceder
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oai_identifier_str oai:sedici.unlp.edu.ar:10915/81753
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repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Asymmetries observed in giant air showers using water Cherenkov detectorsDova, María TeresaThe Pierre Auger CollaborationCiencias ExactasFísicaasymmetryCascada atmosférica extensaEvidence of azimuthal asymmetries in the time structure and signal size has been found in non-vertical showers as a function of zenith angle. These asymmetries arise because of the different paths traveled by particles in the upper and lower sides of the plane perpendicular to the shower axis to reach detectors at the same axial distances. The shower particles are differentially attenuated as they traverse the atmosphere. Furthermore, most particles are not propagating strictly in the shower direction but are on average going away from the axis. This geometrical projection effect also contributes to the final asymmetry. These novel observations must be understood for parameterisation of the lateral distribution function. Additionally, the asymmetry in time distributions offers a new possibility for the determination of the mass composition because its magnitude is strongly dependent on the fraction of electromagnetic signal at the observation level. The asymmetries found in data collected from the Engineering Array of the Auger Observatory will be compared with Monte Carlo data.Facultad de Ciencias Exactas2003-08info:eu-repo/semantics/conferenceObjectinfo:eu-repo/semantics/publishedVersionObjeto de conferenciahttp://purl.org/coar/resource_type/c_5794info:ar-repo/semantics/documentoDeConferenciaapplication/pdf369-372http://sedici.unlp.edu.ar/handle/10915/81753spainfo:eu-repo/semantics/altIdentifier/url/http://inspirehep.net/record/626368info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0/Creative Commons Attribution 4.0 International (CC BY 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:15:16Zoai:sedici.unlp.edu.ar:10915/81753Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:15:16.55SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Asymmetries observed in giant air showers using water Cherenkov detectors
title Asymmetries observed in giant air showers using water Cherenkov detectors
spellingShingle Asymmetries observed in giant air showers using water Cherenkov detectors
Dova, María Teresa
Ciencias Exactas
Física
asymmetry
Cascada atmosférica extensa
title_short Asymmetries observed in giant air showers using water Cherenkov detectors
title_full Asymmetries observed in giant air showers using water Cherenkov detectors
title_fullStr Asymmetries observed in giant air showers using water Cherenkov detectors
title_full_unstemmed Asymmetries observed in giant air showers using water Cherenkov detectors
title_sort Asymmetries observed in giant air showers using water Cherenkov detectors
dc.creator.none.fl_str_mv Dova, María Teresa
The Pierre Auger Collaboration
author Dova, María Teresa
author_facet Dova, María Teresa
The Pierre Auger Collaboration
author_role author
author2 The Pierre Auger Collaboration
author2_role author
dc.subject.none.fl_str_mv Ciencias Exactas
Física
asymmetry
Cascada atmosférica extensa
topic Ciencias Exactas
Física
asymmetry
Cascada atmosférica extensa
dc.description.none.fl_txt_mv Evidence of azimuthal asymmetries in the time structure and signal size has been found in non-vertical showers as a function of zenith angle. These asymmetries arise because of the different paths traveled by particles in the upper and lower sides of the plane perpendicular to the shower axis to reach detectors at the same axial distances. The shower particles are differentially attenuated as they traverse the atmosphere. Furthermore, most particles are not propagating strictly in the shower direction but are on average going away from the axis. This geometrical projection effect also contributes to the final asymmetry. These novel observations must be understood for parameterisation of the lateral distribution function. Additionally, the asymmetry in time distributions offers a new possibility for the determination of the mass composition because its magnitude is strongly dependent on the fraction of electromagnetic signal at the observation level. The asymmetries found in data collected from the Engineering Array of the Auger Observatory will be compared with Monte Carlo data.
Facultad de Ciencias Exactas
description Evidence of azimuthal asymmetries in the time structure and signal size has been found in non-vertical showers as a function of zenith angle. These asymmetries arise because of the different paths traveled by particles in the upper and lower sides of the plane perpendicular to the shower axis to reach detectors at the same axial distances. The shower particles are differentially attenuated as they traverse the atmosphere. Furthermore, most particles are not propagating strictly in the shower direction but are on average going away from the axis. This geometrical projection effect also contributes to the final asymmetry. These novel observations must be understood for parameterisation of the lateral distribution function. Additionally, the asymmetry in time distributions offers a new possibility for the determination of the mass composition because its magnitude is strongly dependent on the fraction of electromagnetic signal at the observation level. The asymmetries found in data collected from the Engineering Array of the Auger Observatory will be compared with Monte Carlo data.
publishDate 2003
dc.date.none.fl_str_mv 2003-08
dc.type.none.fl_str_mv info:eu-repo/semantics/conferenceObject
info:eu-repo/semantics/publishedVersion
Objeto de conferencia
http://purl.org/coar/resource_type/c_5794
info:ar-repo/semantics/documentoDeConferencia
format conferenceObject
status_str publishedVersion
dc.identifier.none.fl_str_mv http://sedici.unlp.edu.ar/handle/10915/81753
url http://sedici.unlp.edu.ar/handle/10915/81753
dc.language.none.fl_str_mv spa
language spa
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://inspirehep.net/record/626368
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/4.0/
Creative Commons Attribution 4.0 International (CC BY 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/4.0/
Creative Commons Attribution 4.0 International (CC BY 4.0)
dc.format.none.fl_str_mv application/pdf
369-372
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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score 13.070432

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