Energy reconstruction of hadron-initiated showers of ultra-high energy cosmic rays

Autores
Ros, G.; Medina Tanco, Gustavo Adolfo; Supanitsky, Alberto Daniel; del Peral, L.; Rodríguez Frías, M. D.
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The current methods to determine the primary energy of ultra-high energy cosmic rays (UHECRs) are different when dealing with hadron or photon primaries. The current experiments combine two different techniques, an array of surface detectors and fluorescence telescopes. The latter allow an almost calorimetric measurement of the primary energy. Thus, hadron-initiated showers detected by both type of detectors are used to calibrate the energy estimator from the surface array (usually the interpolated signal at a certain distance from the shower core S(r_0) with the primary energy. On the other hand, this calibration is not feasible when searching for photon primaries since no high energy photon has been unambiguously detected so far. Therefore, pure Monte Carlo parametrizations are used instead. In this work, we present a new method to determine the primary energy of hadron-induced showers in a hybrid experiment based on a technique previously developed for photon primaries. It consists on a set of calibration curves that relate the surface energy estimator, S(r_0), and the depth of maximum development of the shower, Xmax, obtained from the fluorescence telescopes. Then, the primary energy can be determined from pure surface information since S(r_0) and the zenith angle of the incoming shower are only needed. Considering a mixed sample of ultra-high energy proton and iron primaries and taking into account the reconstruction uncertainties and shower to shower fluctuations, we demonstrate that the primary energy may be determined with a systematic uncertainty below 1% and resolution around16% in the energy range from 10^18.5 to 10^19.6 eV. Several array geometries, the shape of the energy error distributions and the uncertainties due to the unknown composition of the primary flux have been analyzed as well.
Fil: Ros, G.. Universidad de Alcala. Facultad de Ciencias; España
Fil: Medina Tanco, Gustavo Adolfo. Universidad Nacional Autónoma de México. Instituto de Ciencias Nucleares; México
Fil: Supanitsky, Alberto Daniel. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina
Fil: del Peral, L.. Universidad de Alcala. Facultad de Ciencias; España. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Tecnologías en Detección y Astropartículas. Subsede del Instituto de Tecnologías en Detección y Astropartículas Mendoza; Argentina
Fil: Rodríguez Frías, M. D.. Universidad de Alcala. Facultad de Ciencias; España. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Tecnologías en Detección y Astropartículas. Subsede del Instituto de Tecnologías en Detección y Astropartículas Mendoza; Argentina
Materia
Ultra-High Energy Cosmic Rays
Hybrid Experiments
Energy Reconstruction
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/17597
Acceder
id CONICETDig_cc36203b4413eaafe6520e913a3e3978
oai_identifier_str oai:ri.conicet.gov.ar:11336/17597
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Energy reconstruction of hadron-initiated showers of ultra-high energy cosmic raysRos, G.Medina Tanco, Gustavo AdolfoSupanitsky, Alberto Danieldel Peral, L.Rodríguez Frías, M. D.Ultra-High Energy Cosmic RaysHybrid ExperimentsEnergy Reconstructionhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1The current methods to determine the primary energy of ultra-high energy cosmic rays (UHECRs) are different when dealing with hadron or photon primaries. The current experiments combine two different techniques, an array of surface detectors and fluorescence telescopes. The latter allow an almost calorimetric measurement of the primary energy. Thus, hadron-initiated showers detected by both type of detectors are used to calibrate the energy estimator from the surface array (usually the interpolated signal at a certain distance from the shower core S(r_0) with the primary energy. On the other hand, this calibration is not feasible when searching for photon primaries since no high energy photon has been unambiguously detected so far. Therefore, pure Monte Carlo parametrizations are used instead. In this work, we present a new method to determine the primary energy of hadron-induced showers in a hybrid experiment based on a technique previously developed for photon primaries. It consists on a set of calibration curves that relate the surface energy estimator, S(r_0), and the depth of maximum development of the shower, Xmax, obtained from the fluorescence telescopes. Then, the primary energy can be determined from pure surface information since S(r_0) and the zenith angle of the incoming shower are only needed. Considering a mixed sample of ultra-high energy proton and iron primaries and taking into account the reconstruction uncertainties and shower to shower fluctuations, we demonstrate that the primary energy may be determined with a systematic uncertainty below 1% and resolution around16% in the energy range from 10^18.5 to 10^19.6 eV. Several array geometries, the shape of the energy error distributions and the uncertainties due to the unknown composition of the primary flux have been analyzed as well.Fil: Ros, G.. Universidad de Alcala. Facultad de Ciencias; EspañaFil: Medina Tanco, Gustavo Adolfo. Universidad Nacional Autónoma de México. Instituto de Ciencias Nucleares; MéxicoFil: Supanitsky, Alberto Daniel. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; ArgentinaFil: del Peral, L.. Universidad de Alcala. Facultad de Ciencias; España. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Tecnologías en Detección y Astropartículas. Subsede del Instituto de Tecnologías en Detección y Astropartículas Mendoza; ArgentinaFil: Rodríguez Frías, M. D.. Universidad de Alcala. Facultad de Ciencias; España. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Tecnologías en Detección y Astropartículas. Subsede del Instituto de Tecnologías en Detección y Astropartículas Mendoza; ArgentinaElsevier Science2015-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/17597Ros, G.; Medina Tanco, Gustavo Adolfo; Supanitsky, Alberto Daniel; del Peral, L.; Rodríguez Frías, M. D.; Energy reconstruction of hadron-initiated showers of ultra-high energy cosmic rays; Elsevier Science; Astroparticle Physics; 69; 4-2015; 61-670927-6505enginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.astropartphys.2015.04.001info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/1504.04159info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0927650515000626?via%3Dihubinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:01:06Zoai:ri.conicet.gov.ar:11336/17597instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-03 10:01:06.85CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Energy reconstruction of hadron-initiated showers of ultra-high energy cosmic rays
title Energy reconstruction of hadron-initiated showers of ultra-high energy cosmic rays
spellingShingle Energy reconstruction of hadron-initiated showers of ultra-high energy cosmic rays
Ros, G.
Ultra-High Energy Cosmic Rays
Hybrid Experiments
Energy Reconstruction
title_short Energy reconstruction of hadron-initiated showers of ultra-high energy cosmic rays
title_full Energy reconstruction of hadron-initiated showers of ultra-high energy cosmic rays
title_fullStr Energy reconstruction of hadron-initiated showers of ultra-high energy cosmic rays
title_full_unstemmed Energy reconstruction of hadron-initiated showers of ultra-high energy cosmic rays
title_sort Energy reconstruction of hadron-initiated showers of ultra-high energy cosmic rays
dc.creator.none.fl_str_mv Ros, G.
Medina Tanco, Gustavo Adolfo
Supanitsky, Alberto Daniel
del Peral, L.
Rodríguez Frías, M. D.
author Ros, G.
author_facet Ros, G.
Medina Tanco, Gustavo Adolfo
Supanitsky, Alberto Daniel
del Peral, L.
Rodríguez Frías, M. D.
author_role author
author2 Medina Tanco, Gustavo Adolfo
Supanitsky, Alberto Daniel
del Peral, L.
Rodríguez Frías, M. D.
author2_role author
author
author
author
dc.subject.none.fl_str_mv Ultra-High Energy Cosmic Rays
Hybrid Experiments
Energy Reconstruction
topic Ultra-High Energy Cosmic Rays
Hybrid Experiments
Energy Reconstruction
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The current methods to determine the primary energy of ultra-high energy cosmic rays (UHECRs) are different when dealing with hadron or photon primaries. The current experiments combine two different techniques, an array of surface detectors and fluorescence telescopes. The latter allow an almost calorimetric measurement of the primary energy. Thus, hadron-initiated showers detected by both type of detectors are used to calibrate the energy estimator from the surface array (usually the interpolated signal at a certain distance from the shower core S(r_0) with the primary energy. On the other hand, this calibration is not feasible when searching for photon primaries since no high energy photon has been unambiguously detected so far. Therefore, pure Monte Carlo parametrizations are used instead. In this work, we present a new method to determine the primary energy of hadron-induced showers in a hybrid experiment based on a technique previously developed for photon primaries. It consists on a set of calibration curves that relate the surface energy estimator, S(r_0), and the depth of maximum development of the shower, Xmax, obtained from the fluorescence telescopes. Then, the primary energy can be determined from pure surface information since S(r_0) and the zenith angle of the incoming shower are only needed. Considering a mixed sample of ultra-high energy proton and iron primaries and taking into account the reconstruction uncertainties and shower to shower fluctuations, we demonstrate that the primary energy may be determined with a systematic uncertainty below 1% and resolution around16% in the energy range from 10^18.5 to 10^19.6 eV. Several array geometries, the shape of the energy error distributions and the uncertainties due to the unknown composition of the primary flux have been analyzed as well.
Fil: Ros, G.. Universidad de Alcala. Facultad de Ciencias; España
Fil: Medina Tanco, Gustavo Adolfo. Universidad Nacional Autónoma de México. Instituto de Ciencias Nucleares; México
Fil: Supanitsky, Alberto Daniel. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina
Fil: del Peral, L.. Universidad de Alcala. Facultad de Ciencias; España. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Tecnologías en Detección y Astropartículas. Subsede del Instituto de Tecnologías en Detección y Astropartículas Mendoza; Argentina
Fil: Rodríguez Frías, M. D.. Universidad de Alcala. Facultad de Ciencias; España. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Tecnologías en Detección y Astropartículas. Subsede del Instituto de Tecnologías en Detección y Astropartículas Mendoza; Argentina
description The current methods to determine the primary energy of ultra-high energy cosmic rays (UHECRs) are different when dealing with hadron or photon primaries. The current experiments combine two different techniques, an array of surface detectors and fluorescence telescopes. The latter allow an almost calorimetric measurement of the primary energy. Thus, hadron-initiated showers detected by both type of detectors are used to calibrate the energy estimator from the surface array (usually the interpolated signal at a certain distance from the shower core S(r_0) with the primary energy. On the other hand, this calibration is not feasible when searching for photon primaries since no high energy photon has been unambiguously detected so far. Therefore, pure Monte Carlo parametrizations are used instead. In this work, we present a new method to determine the primary energy of hadron-induced showers in a hybrid experiment based on a technique previously developed for photon primaries. It consists on a set of calibration curves that relate the surface energy estimator, S(r_0), and the depth of maximum development of the shower, Xmax, obtained from the fluorescence telescopes. Then, the primary energy can be determined from pure surface information since S(r_0) and the zenith angle of the incoming shower are only needed. Considering a mixed sample of ultra-high energy proton and iron primaries and taking into account the reconstruction uncertainties and shower to shower fluctuations, we demonstrate that the primary energy may be determined with a systematic uncertainty below 1% and resolution around16% in the energy range from 10^18.5 to 10^19.6 eV. Several array geometries, the shape of the energy error distributions and the uncertainties due to the unknown composition of the primary flux have been analyzed as well.
publishDate 2015
dc.date.none.fl_str_mv 2015-04
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/17597
Ros, G.; Medina Tanco, Gustavo Adolfo; Supanitsky, Alberto Daniel; del Peral, L.; Rodríguez Frías, M. D.; Energy reconstruction of hadron-initiated showers of ultra-high energy cosmic rays; Elsevier Science; Astroparticle Physics; 69; 4-2015; 61-67
0927-6505
url http://hdl.handle.net/11336/17597
identifier_str_mv Ros, G.; Medina Tanco, Gustavo Adolfo; Supanitsky, Alberto Daniel; del Peral, L.; Rodríguez Frías, M. D.; Energy reconstruction of hadron-initiated showers of ultra-high energy cosmic rays; Elsevier Science; Astroparticle Physics; 69; 4-2015; 61-67
0927-6505
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.astropartphys.2015.04.001
info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/1504.04159
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0927650515000626?via%3Dihub
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier Science
publisher.none.fl_str_mv Elsevier Science
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1842269677087096832
score 13.13397

Publicaciones similares