Upper limit on the cosmic-ray photon fraction at EeV energies from the Pierre Auger Observatory
- Autores
- Badagnani, Daniel Omar; Dova, María Teresa; Gómez Albarracín, Flavia Alejandra; Hansen, Patricia María; Mariazzi, Analisa Gabriela; Moreno, Juan Cruz; Tarutina, Tatiana; Tueros, Matías Jorge; Wahlberg, Hernán Pablo; The Pierre Auger Collaboration
- Año de publicación
- 2009
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- From direct observations of the longitudinal development of ultra-high energy air showers performed with the Pierre Auger Observatory, upper limits of 3.8%, 2.4%, 3.5% and 11.7% (at 95% c.l.) are obtained on the fraction of cosmic-ray photons above 2, 3, 5 and 10 EeV (1 EeV ≣ 1018 eV), respectively. These are the first experimental limits on ultra-high energy photons at energies below 10 EeV. The results complement previous constraints on top–down models from array data and they reduce systematic uncertainties in the interpretation of shower data in terms of primary flux, nuclear composition and protonair cross-section.
Facultad de Ciencias Exactas - Materia
-
Ciencias Exactas
Física
Cascada atmosférica
Pierre Auger Observatory
Radiación cósmica
Fotones - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by-nc-sa/4.0/
- Repositorio
.jpg)
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/80633
Ver los metadatos del registro completo
| id |
SEDICI_b93ef2e05afcadf99125e28c4172693f |
|---|---|
| oai_identifier_str |
oai:sedici.unlp.edu.ar:10915/80633 |
| network_acronym_str |
SEDICI |
| repository_id_str |
1329 |
| network_name_str |
SEDICI (UNLP) |
| spelling |
Upper limit on the cosmic-ray photon fraction at EeV energies from the Pierre Auger ObservatoryBadagnani, Daniel OmarDova, María TeresaGómez Albarracín, Flavia AlejandraHansen, Patricia MaríaMariazzi, Analisa GabrielaMoreno, Juan CruzTarutina, TatianaTueros, Matías JorgeWahlberg, Hernán PabloThe Pierre Auger CollaborationCiencias ExactasFísicaCascada atmosféricaPierre Auger ObservatoryRadiación cósmicaFotonesFrom direct observations of the longitudinal development of ultra-high energy air showers performed with the Pierre Auger Observatory, upper limits of 3.8%, 2.4%, 3.5% and 11.7% (at 95% c.l.) are obtained on the fraction of cosmic-ray photons above 2, 3, 5 and 10 EeV (1 EeV ≣ 10<sup>18</sup> eV), respectively. These are the first experimental limits on ultra-high energy photons at energies below 10 EeV. The results complement previous constraints on top–down models from array data and they reduce systematic uncertainties in the interpretation of shower data in terms of primary flux, nuclear composition and protonair cross-section.Facultad de Ciencias Exactas2009-05-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf399-406http://sedici.unlp.edu.ar/handle/10915/80633enginfo:eu-repo/semantics/altIdentifier/issn/0927-6505info:eu-repo/semantics/altIdentifier/doi/10.1016/j.astropartphys.2009.04.003info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-03T10:47:08Zoai:sedici.unlp.edu.ar:10915/80633Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-03 10:47:08.486SEDICI (UNLP) - Universidad Nacional de La Platafalse |
| dc.title.none.fl_str_mv |
Upper limit on the cosmic-ray photon fraction at EeV energies from the Pierre Auger Observatory |
| title |
Upper limit on the cosmic-ray photon fraction at EeV energies from the Pierre Auger Observatory |
| spellingShingle |
Upper limit on the cosmic-ray photon fraction at EeV energies from the Pierre Auger Observatory Badagnani, Daniel Omar Ciencias Exactas Física Cascada atmosférica Pierre Auger Observatory Radiación cósmica Fotones |
| title_short |
Upper limit on the cosmic-ray photon fraction at EeV energies from the Pierre Auger Observatory |
| title_full |
Upper limit on the cosmic-ray photon fraction at EeV energies from the Pierre Auger Observatory |
| title_fullStr |
Upper limit on the cosmic-ray photon fraction at EeV energies from the Pierre Auger Observatory |
| title_full_unstemmed |
Upper limit on the cosmic-ray photon fraction at EeV energies from the Pierre Auger Observatory |
| title_sort |
Upper limit on the cosmic-ray photon fraction at EeV energies from the Pierre Auger Observatory |
| dc.creator.none.fl_str_mv |
Badagnani, Daniel Omar Dova, María Teresa Gómez Albarracín, Flavia Alejandra Hansen, Patricia María Mariazzi, Analisa Gabriela Moreno, Juan Cruz Tarutina, Tatiana Tueros, Matías Jorge Wahlberg, Hernán Pablo The Pierre Auger Collaboration |
| author |
Badagnani, Daniel Omar |
| author_facet |
Badagnani, Daniel Omar Dova, María Teresa Gómez Albarracín, Flavia Alejandra Hansen, Patricia María Mariazzi, Analisa Gabriela Moreno, Juan Cruz Tarutina, Tatiana Tueros, Matías Jorge Wahlberg, Hernán Pablo The Pierre Auger Collaboration |
| author_role |
author |
| author2 |
Dova, María Teresa Gómez Albarracín, Flavia Alejandra Hansen, Patricia María Mariazzi, Analisa Gabriela Moreno, Juan Cruz Tarutina, Tatiana Tueros, Matías Jorge Wahlberg, Hernán Pablo The Pierre Auger Collaboration |
| author2_role |
author author author author author author author author author |
| dc.subject.none.fl_str_mv |
Ciencias Exactas Física Cascada atmosférica Pierre Auger Observatory Radiación cósmica Fotones |
| topic |
Ciencias Exactas Física Cascada atmosférica Pierre Auger Observatory Radiación cósmica Fotones |
| dc.description.none.fl_txt_mv |
From direct observations of the longitudinal development of ultra-high energy air showers performed with the Pierre Auger Observatory, upper limits of 3.8%, 2.4%, 3.5% and 11.7% (at 95% c.l.) are obtained on the fraction of cosmic-ray photons above 2, 3, 5 and 10 EeV (1 EeV ≣ 10<sup>18</sup> eV), respectively. These are the first experimental limits on ultra-high energy photons at energies below 10 EeV. The results complement previous constraints on top–down models from array data and they reduce systematic uncertainties in the interpretation of shower data in terms of primary flux, nuclear composition and protonair cross-section. Facultad de Ciencias Exactas |
| description |
From direct observations of the longitudinal development of ultra-high energy air showers performed with the Pierre Auger Observatory, upper limits of 3.8%, 2.4%, 3.5% and 11.7% (at 95% c.l.) are obtained on the fraction of cosmic-ray photons above 2, 3, 5 and 10 EeV (1 EeV ≣ 10<sup>18</sup> eV), respectively. These are the first experimental limits on ultra-high energy photons at energies below 10 EeV. The results complement previous constraints on top–down models from array data and they reduce systematic uncertainties in the interpretation of shower data in terms of primary flux, nuclear composition and protonair cross-section. |
| publishDate |
2009 |
| dc.date.none.fl_str_mv |
2009-05-03 |
| dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Articulo 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://sedici.unlp.edu.ar/handle/10915/80633 |
| url |
http://sedici.unlp.edu.ar/handle/10915/80633 |
| dc.language.none.fl_str_mv |
eng |
| language |
eng |
| dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/issn/0927-6505 info:eu-repo/semantics/altIdentifier/doi/10.1016/j.astropartphys.2009.04.003 |
| dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) |
| eu_rights_str_mv |
openAccess |
| rights_invalid_str_mv |
http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) |
| dc.format.none.fl_str_mv |
application/pdf 399-406 |
| 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 |
| _version_ |
1842260343785521152 |
| score |
13.13397 |