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Studies on the response of a water-Cherenkov detector of the Pierre Auger Observatory to atmospheric muons using an RPC hodoscope
- Source :
- Journal of Instrumentation, 15(09):P09002. IOP Publishing Ltd., Journal of Instrumentation, 15 (9, Journal of Instrumentation, 15(9):P09002. IOP PUBLISHING LTD, Journal of Instrumentation, Journal of Instrumentation, IOP Publishing, 2020, 15 (09), pp.P09002. ⟨10.1088/1748-0221/15/09/P09002⟩, Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual), Universidade de São Paulo (USP), instacron:USP, Journal of Instrumentation, 15, 09, pp. 1-25, Journal of Instrumentation, 15, 1-25, Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos), Agência para a Sociedade do Conhecimento (UMIC)-FCT-Sociedade da Informação, instacron:RCAAP, SEDICI (UNLP), Universidad Nacional de La Plata, instacron:UNLP
- Publication Year :
- 2020
-
Abstract
- Extensive air showers, originating from ultra-high energy cosmic rays, have been successfully measured through the use of arrays of water-Cherenkov detectors (WCDs). Sophisticated analyses exploiting WCD data have made it possible to demonstrate that shower simulations, based on different hadronic-interaction models, cannot reproduce the observed number of muons at the ground. The accurate knowledge of the WCD response to muons is paramount in establishing the exact level of this discrepancy. In this work, we report on a study of the response of a WCD of the Pierre Auger Observatory to atmospheric muons performed with a hodoscope made of resistive plate chambers (RPCs), enabling us to select and reconstruct nearly 600 thousand single muon trajectories with zenith angles ranging from 0º to 55º. Comparison of distributions of key observables between the hodoscope data and the predictions of dedicated simulations allows us to demonstrate the accuracy of the latter at a level of 2%. As the WCD calibration is based on its response to atmospheric muons, the hodoscope data are also exploited to show the long-term stability of the procedure.<br />La lista completa de autores que integran el documento puede consultarse en el archivo.<br />Facultad de Ciencias Exactas<br />Instituto de Física La Plata
- Subjects :
- Physics - Instrumentation and Detectors
Physics::Instrumentation and Detectors
Astronomy
01 natural sciences
030218 nuclear medicine & medical imaging
law.invention
0302 clinical medicine
law
Observatory
atmosphere [muon]
Instrumentation
physics.ins-det
Mathematical Physics
Large detector-systems performance
Physics
Instrumentation et méthodes en physique
Performance of high energy physics detectors
Data reduction methods
Large detector systems for particle and astroparticle physics
Detector
Settore FIS/01 - Fisica Sperimentale
Astrophysics::Instrumentation and Methods for Astrophysics
resistive plate chamber
Instrumentation and Detectors (physics.ins-det)
trajectory [muon]
Auger
observatory
muon: atmosphere
Astrophysics - Instrumentation and Methods for Astrophysics
atmosphere [showers]
Cherenkov detector
air
Cherenkov counter: water
Astrophysics::High Energy Astrophysical Phenomena
UHE [cosmic radiation]
FOS: Physical sciences
Cosmic ray
muon: trajectory
Nuclear physics
03 medical and health sciences
Hodoscope
Data reduction method
0103 physical sciences
Calibration
High Energy Physics
ddc:610
cosmic radiation: UHE
[PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det]
Instrumentation and Methods for Astrophysics (astro-ph.IM)
Zenith
Ciencias Exactas
Pierre Auger Observatory
showers: atmosphere
010308 nuclear & particles physics
water [Cherenkov counter]
hodoscope
Física
Autres mathématiques
stability
calibration
Data reduction methods, Large detector systems for particle and astroparticle physics, Large detector-systems performance, Performance of High Energy Physics Detectors
Experimental High Energy Physics
Large detector systems for particle and astroparticle physic
High Energy Physics::Experiment
RAIOS CÓSMICOS
astro-ph.IM
Subjects
Details
- Language :
- English
- ISSN :
- 17480221
- Database :
- OpenAIRE
- Journal :
- Journal of Instrumentation, 15(09):P09002. IOP Publishing Ltd., Journal of Instrumentation, 15 (9, Journal of Instrumentation, 15(9):P09002. IOP PUBLISHING LTD, Journal of Instrumentation, Journal of Instrumentation, IOP Publishing, 2020, 15 (09), pp.P09002. ⟨10.1088/1748-0221/15/09/P09002⟩, Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual), Universidade de São Paulo (USP), instacron:USP, Journal of Instrumentation, 15, 09, pp. 1-25, Journal of Instrumentation, 15, 1-25, Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos), Agência para a Sociedade do Conhecimento (UMIC)-FCT-Sociedade da Informação, instacron:RCAAP, SEDICI (UNLP), Universidad Nacional de La Plata, instacron:UNLP
- Accession number :
- edsair.doi.dedup.....3b815bee6bfe2445379e99d3441971f5
- Full Text :
- https://doi.org/10.18154/RWTH-2020-11286