11. Initial results of a direct comparison between the Surface Detectors of the Pierre Auger Observatory and the Telescope Arraymarko zavrtanik, Danilo Zavrtanik, Lili Yang, Serguei Vorobiov, Darko Veberič, Marta Trini, Samo Stanič, Ahmed Saleh, Gašper Kukec Mezek, Andrej Filipčič, R. Takeishi, 2015, published scientific conference contribution Abstract: The Pierre Auger Observatory (Auger) in Mendoza, Argentina and
the Telescope Array (TA) in Utah, USA aim at unraveling the
origin and nature of Ultra-High Energy Cosmic Rays (UHECR).
At present, there appear to be subtle differences between Auger
and TA results and interpretations. Joint working groups have
been established and have already reported preliminary
findings. From an experimental standpoint, the Surface
Detectors (SD) of both experiments make use of different
detection processes not equally sensitive to the components of
the extensive air showers making it to the ground. In particular, the muonic component of the shower measured at
ground level can be traced back to the primary composition,
which is critical for understanding the origin of UHECRs.
In order to make direct comparisons between the SD detection
techniques used by Auger and TA, a joint SD experimental
research program is being developed. In the first phase,
two Auger SD stations were deployed at the TA Central Laser
Facility to compare station-level responses. This paper
concentrates on the results obtained with the first Auger SD
station (an “Auger North” design), which has been operating
since October 2014. The second Auger SD station, identical to
the ones being operated at Auger in Argentina (an “Auger South”
design), was just deployed in June 2015. The second phase of
this research program will be to co-locate six Auger North SD
stations with TA stations in the field to compare event-level
responses.
Found in: ključnih besedah
Summary of found: ...not equally sensitive to the components of
the extensive air showers making it to the ground....
Keywords: Ultra-High Energy Cosmic Rays, Pierre Auger Observatory, Telescope Array, extensive air showers, secondary cosmic rays, muonic shower component, surface detectors
Published: 08.03.2016; Views: 3788; Downloads: 179
 Fulltext (1,42 MB) |
12. Azimuthal asymmetry in the risetime of the surface detector signals of the Pierre Auger Observatorymarko zavrtanik, danilo zavrtanik, Lili Yang, Serguei Vorobiov, Darko Veberič, Marta Trini, Samo Stanič, Ahmed Saleh, Gašper Kukec Mezek, Andrej Filipčič, A. Aab, 2016, original scientific article 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.
Found in: ključnih besedah
Summary of found: ...nergy cosmic rays (UHECR),
UHECR mass composition,
Pierre Auger Observatory,
extensive air showers,
Auger Surface Detector signals risetime,
azimuthal symmetry...
Keywords: ultra-high energy cosmic rays (UHECR), UHECR mass composition, Pierre Auger Observatory, extensive air showers, Auger Surface Detector signals risetime, azimuthal symmetry
Published: 15.04.2016; Views: 4538; Downloads: 0
Fulltext (698,19 KB) |
13. Measurement of the energy spectrum of cosmic rays with the Pierre Auger ObservatoryVitor de Souza, Andrej Filipčič, Ahmed Saleh, Samo Stanič, Darko Veberič, Serguei Vorobiov, Danilo Zavrtanik, Marko Zavrtanik, 2016, published scientific conference contribution Found in: ključnih besedah
Summary of found: ... cosmic rays (UHECR),
UHECR elemental composition,
Pierre Auger Observatory,
extensive air showers (EAS),
EAS longitudinal profiles,
depth of shower...
Keywords: Ultra-high energy cosmic rays (UHECR), UHECR elemental composition, Pierre Auger Observatory, extensive air showers (EAS), EAS longitudinal profiles, depth of shower maximum
Published: 09.11.2016; Views: 3566; Downloads: 0
Fulltext (2,50 MB) |
14. Muons in Air Showers at the Pierre Auger ObservatoryMichael Unger, Andrej Filipčič, Ahmed Saleh, Samo Stanič, Darko Veberič, Serguei Vorobiov, Danilo Zavrtanik, Marko Zavrtanik, 2016, published scientific conference contribution Found in: ključnih besedah
Summary of found: ...ultra-high energy cosmic rays (UHECR),
extensive air showers (EAS),
Pierre Auger Observatory,
EAS muon content...
Keywords: ultra-high energy cosmic rays (UHECR), extensive air showers (EAS), Pierre Auger Observatory, EAS muon content
Published: 09.11.2016; Views: 4092; Downloads: 0
Fulltext (519,98 KB) |
15. Radio detection of high-energy cosmic rays with the Auger Engineering Radio ArrayMarko Zavrtanik, Danilo Zavrtanik, Lili Yang, Serguei Vorobiov, Darko Veberič, Marta Trini, Samo Stanič, Ahmed Saleh, Gašper Kukec Mezek, Andrej Filipčič, Frank G. Schröder, 2016, published scientific conference contribution Found in: ključnih besedah
Summary of found: ...high-energy cosmic rays,
extensive air showers (EAS),
EAS radio emission,
Pierre Auger Observatory,
Auger...
Keywords: high-energy cosmic rays, extensive air showers (EAS), EAS radio emission, Pierre Auger Observatory, Auger Engineering Radio Array
Published: 09.11.2016; Views: 3598; Downloads: 0
Fulltext (1,23 MB) |
16. The Auger Engineering Radio Array and multi-hybrid cosmic ray detectionMarko Zavrtanik, Danilo Zavrtanik, Lili Yang, Serguei Vorobiov, Darko Veberič, Marta Trini, Samo Stanič, Ahmed Saleh, Gašper Kukec Mezek, Andrej Filipčič, E. M. Holt, 2016, published scientific conference contribution Found in: ključnih besedah
Summary of found: ...cosmic rays (CR),
extensive air showers,
EAS radio emission,
Pierre Auger Observatory,
Auger Engineering...
Keywords: cosmic rays (CR), extensive air showers, EAS radio emission, Pierre Auger Observatory, Auger Engineering Radio Array, multi-hybrid CR detection
Published: 09.11.2016; Views: 3642; Downloads: 255
Fulltext (1,98 MB) |
17. Muon counting using silicon photomultipliers in the AMIGA detector of the Pierre Auger observatoryMarko Zavrtanik, Danilo Zavrtanik, Lili Yang, Serguei Vorobiov, Darko Veberič, Marta Trini, Samo Stanič, Ahmed Saleh, Gašper Kukec Mezek, Andrej Filipčič, A. Aab, 2017, original scientific article Found in: ključnih besedah
Summary of found: ...Pierre Auger Observatory, ultra-high energy cosmic rays (UHECR),
extensive air showers (EAS), EAS muon content,
Auger...
Keywords: Pierre Auger Observatory, ultra-high energy cosmic rays (UHECR), extensive air showers (EAS), EAS muon content, Auger Muons and Infill for the Ground Array (AMIGA), scintillation modules for muon counting, silicon photomultipliers (SiPM)
Published: 08.03.2017; Views: 3492; Downloads: 1
Fulltext (1,12 MB) |
18. Constraints and measurements of hadronic interactions in extensive air showers with the Pierre Auger ObservatoryMarko Zavrtanik, Danilo Zavrtanik, Darko Veberič, Samo Stanič, Andrej Filipčič, L. Cazon, 2015, published scientific conference contribution Found in: ključnih besedah
Keywords: Pierre Auger Observatory, extensive air showers, hadronic interactions
Published: 14.06.2017; Views: 3776; Downloads: 0
Fulltext (1,13 MB) |
19. Particle physics at the Pierre Auger ObservatoryMarko Zavrtanik, Danilo Zavrtanik, Serguei Vorobiov, Darko Veberič, Samo Stanič, Ahmed Saleh, Andrej Filipčič, Jan Ebr, 2014, published scientific conference contribution Found in: ključnih besedah
Summary of found: ...Pierre Auger Observatory,
extensive air showers,
hadronic interactions,
proton-air cross section...
Keywords: Pierre Auger Observatory, extensive air showers, hadronic interactions, proton-air cross section
Published: 20.06.2017; Views: 3647; Downloads: 198
Fulltext (1,02 MB) |
20. Particle Physics with the Pierre Auger ObservatoryMarko Zavrtanik, Danilo Zavrtanik, Darko Veberič, Samo Stanič, Andrej Filipčič, Tanguy Pierog, 2014, published scientific conference contribution Found in: ključnih besedah
Summary of found: ...Pierre Auger Observatory,
extensive air showers,
hadronic interactions,
proton-air inelastic cross-section...
Keywords: Pierre Auger Observatory, extensive air showers, hadronic interactions, proton-air inelastic cross-section
Published: 27.06.2017; Views: 3209; Downloads: 0
Fulltext (4,90 MB) |
