Back to Search
Start Over
Azimuthal Asymmetry in the Risetime of the Surface Detector Signals of the Pierre Auger Observatory
- Source :
- Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos), Agência para a Sociedade do Conhecimento (UMIC)-FCT-Sociedade da Informação, instacron:RCAAP, CONICET Digital (CONICET), Consejo Nacional de Investigaciones Científicas y Técnicas, instacron:CONICET, Physical Review D, Physical Review D, American Physical Society, 2016, 93 (7), pp.072006. ⟨10.1103/PhysRevD.93.072006⟩, Physical Review D, 93(7):072006. AMER PHYSICAL SOC, Physical review / D 93(7), 072006 (2016). doi:10.1103/PhysRevD.93.072006, Physical Review. D, Particles, Fields, Gravitation, and Cosmology, 93, 1-16, Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual), Universidade de São Paulo (USP), instacron:USP, Physical Review D, 2016, 93 (7), pp.072006. ⟨10.1103/PhysRevD.93.072006⟩, E-Prints Complutense. Archivo Institucional de la UCM, instname, NASA Astrophysics Data System, SEDICI (UNLP), Universidad Nacional de La Plata, instacron:UNLP, Physical Review. D, Particles, Fields, Gravitation, and Cosmology, 93, 7, pp. 1-16, E-Prints Complutense: Archivo Institucional de la UCM, Universidad Complutense de Madrid
- Publication Year :
- 2016
-
Abstract
- The azimuthal asymmetry in the risetime of signals in Auger surface detector stations is a source of information on shower development. The azimuthal asymmetry is due to a combination of the longitudinal evolution of the shower and geometrical effects related to the angles of incidence of the particles into the detectors. The magnitude of the effect depends upon the zenith angle and state of development of the shower and thus provides a novel observable, (secθ)max, sensitive to the mass composition of cosmic rays above 3×1018 eV. By comparing measurements with predictions from shower simulations, we find for both of our adopted models of hadronic physics (QGSJETII-04 and EPOS-LHC) an indication that the mean cosmic-ray mass increases slowly with energy, as has been inferred from other studies. However, the mass estimates are dependent on the shower model and on the range of distance from the shower core selected. Thus the method has uncovered further deficiencies in our understanding of shower modeling that must be resolved before the mass composition can be inferred from (secθ)max.<br />La lista completa de autores que integran el documento puede consultarse en el archivo<br />Instituto de Física La Plata
- Subjects :
- mass spectrum [cosmic radiation]
Physics::Instrumentation and Detectors
Astronomy
Ciencias Físicas
Azimuthal asymmetry
01 natural sciences
geometrical [effect]
Auger
ultra-high energy cosmic rays, mass composition, extensive air showers
purl.org/becyt/ford/1 [https]
surface [detector]
mass [cosmic radiation]
Observatory
Physics
High Energy Astrophysical Phenomena (astro-ph.HE)
Range (particle radiation)
Detector
Astrophysics::Instrumentation and Methods for Astrophysics
Observable
COSMIC-RAYS
observatory
Mass estimates
asymmetry [angular distribution]
ComputingMethodologies_DOCUMENTANDTEXTPROCESSING
Física nuclear
Astrophysics - High Energy Astrophysical Phenomena
CIENCIAS NATURALES Y EXACTAS
AUGER
[PHYS.ASTR.HE]Physics [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE]
Nuclear and High Energy Physics
longitudinal
Astrophysics::High Energy Astrophysical Phenomena
FOS: Physical sciences
Cosmic ray
EXTENSIVE AIR-SHOWERS
Nuclear physics
EXTENSIVE AIR-SHOWERS, COSMIC-RAYS, PARTICLES, ARRAY
0103 physical sciences
PARTICLES
ddc:530
High Energy Physics
010306 general physics
Zenith
Pierre Auger Observatory
rayos cosmicos
010308 nuclear & particles physics
Física
ASTROFÍSICA
showers
purl.org/becyt/ford/1.3 [https]
Shower modeling
Astronomía
MASS COMPOSITION
Experimental High Energy Physics
ARRAY
hadronic [model]
High Energy Physics::Experiment
Subjects
Details
- Language :
- English
- ISSN :
- 15507998 and 15502368
- Database :
- OpenAIRE
- Journal :
- Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos), Agência para a Sociedade do Conhecimento (UMIC)-FCT-Sociedade da Informação, instacron:RCAAP, CONICET Digital (CONICET), Consejo Nacional de Investigaciones Científicas y Técnicas, instacron:CONICET, Physical Review D, Physical Review D, American Physical Society, 2016, 93 (7), pp.072006. ⟨10.1103/PhysRevD.93.072006⟩, Physical Review D, 93(7):072006. AMER PHYSICAL SOC, Physical review / D 93(7), 072006 (2016). doi:10.1103/PhysRevD.93.072006, Physical Review. D, Particles, Fields, Gravitation, and Cosmology, 93, 1-16, Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual), Universidade de São Paulo (USP), instacron:USP, Physical Review D, 2016, 93 (7), pp.072006. ⟨10.1103/PhysRevD.93.072006⟩, E-Prints Complutense. Archivo Institucional de la UCM, instname, NASA Astrophysics Data System, SEDICI (UNLP), Universidad Nacional de La Plata, instacron:UNLP, Physical Review. D, Particles, Fields, Gravitation, and Cosmology, 93, 7, pp. 1-16, E-Prints Complutense: Archivo Institucional de la UCM, Universidad Complutense de Madrid
- Accession number :
- edsair.doi.dedup.....e60d0a1aca9352402a5ffb495aed380d