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141.
142.
Estimating the Depth of Shower Maximum using the Surface Detectors of the Pierre Auger Observatory
Lukas Zehrer, Marko Zavrtanik, Danilo Zavrtanik, Lili Yang, Serguei Vorobiov, Marta Trini, Samo Stanič, Gašper Kukec Mezek, Andrej Filipčič, Carlos José Todero Peixoto, 2019, objavljeni znanstveni prispevek na konferenci

Najdeno v: ključnih besedah
Povzetek najdenega: ...Pierre Auger Observatory, ultra-high energy cosmic rays (UHECR), extensive air showers, Auger Surface Detector...
Ključne besede: Pierre Auger Observatory, ultra-high energy cosmic rays (UHECR), extensive air showers, Auger Surface Detector (SD) array, depth of shower maximum
Objavljeno: 21.12.2020; Ogledov: 139; Prenosov: 6
.pdf Polno besedilo (850,78 KB)

143.
Analysis of Data from Surface Detector Stations of the AugerPrime Upgrade
Lukas Zehrer, Marko Zavrtanik, Danilo Zavrtanik, Lili Yang, Serguei Vorobiov, Marta Trini, Samo Stanič, Gašper Kukec Mezek, Andrej Filipčič, Álvaro Taboada, 2019, objavljeni znanstveni prispevek na konferenci

Najdeno v: ključnih besedah
Povzetek najdenega: ...Pierre Auger Observatory (PAO), ultra-high energy cosmic rays, AugerPrime upgrade of the PAO, Scintillator Surface...
Ključne besede: Pierre Auger Observatory (PAO), ultra-high energy cosmic rays, AugerPrime upgrade of the PAO, Scintillator Surface Detector (SSD), Water-Cherenkov Detectors (WCDs), AugerPrime data analysis
Objavljeno: 21.12.2020; Ogledov: 148; Prenosov: 6
.pdf Polno besedilo (2,56 MB)

144.
145.
Decaying fermionic dark matter search with CALET
Saptashwa Bhattacharyya, 2017, izvirni znanstveni članek

Najdeno v: ključnih besedah
Povzetek najdenega: ... cosmic rays detectors, dark matter detectors, dark matter...
Ključne besede: cosmic rays detectors, dark matter detectors, dark matter simulations
Objavljeno: 06.01.2021; Ogledov: 122; Prenosov: 0
.pdf Polno besedilo (4,84 MB)

146.
CALET’s sensitivity to Dark Matter annihilation in the galactic halo
Saptashwa Bhattacharyya, Shoji Torii, Yoichi Asaoka, Holger Motzka, 2015, izvirni znanstveni članek

Najdeno v: ključnih besedah
Povzetek najdenega: ...dark matter detectors, dark matter simulations, cosmic rays detectors...
Ključne besede: dark matter detectors, dark matter simulations, cosmic rays detectors
Objavljeno: 06.01.2021; Ogledov: 124; Prenosov: 0
.pdf Polno besedilo (3,44 MB)

147.
An interpretation of the cosmic ray e + + e − spectrum from 10 GeV to 3 TeV measured by CALET on the ISS
Saptashwa Bhattacharyya, 2019, izvirni znanstveni članek

Najdeno v: ključnih besedah
Ključne besede: CALET, cosmic rays, dark matter
Objavljeno: 06.01.2021; Ogledov: 125; Prenosov: 0
.pdf Polno besedilo (2,76 MB)

148.
Self consistent simulation of dark matter and background
Saptashwa Bhattacharyya, Holger Motz, Shoji Torii, Yoichi Asaoka, Yuko Okada, 2015, objavljeni znanstveni prispevek na konferenci

Najdeno v: ključnih besedah
Ključne besede: dark matter, GALPROP, cosmic-rays
Objavljeno: 04.02.2021; Ogledov: 90; Prenosov: 0
.pdf Polno besedilo (527,13 KB)

149.
Measurement of the proton-air cross section with Telescope Array's Black Rock Mesa and Long Ridge fluorescence detectors, and surface array in hybrid mode
Mitsuhiro Abe, R. U. Abbasi, T. Abu-Zayyad, M. Allen, R. Azuma, E. Barcikowski, J. W. Belz, J. P. Lundquist, S. A. Blake, D. R. Bergman, 2020, izvirni znanstveni članek

Opis: Ultra high energy cosmic rays provide the highest known energy source in the universe to measure proton cross sections. Though conditions for collecting such data are less controlled than an accelerator environment, current generation cosmic ray observatories have large enough exposures to collect significant statistics for a reliable measurement for energies above what can be attained in the lab. Cosmic ray measurements of cross section use atmospheric calorimetry to measure depth of air shower maximum (Xmax), which is related to the primary particle’s energy and mass. The tail of the Xmax distribution is assumed to be dominated by showers generated by protons, allowing measurement of the inelastic proton-air cross section. In this work the proton-air inelastic cross section measurement, σ_inel_p−air, using data observed by Telescope Array’s Black Rock Mesa and Long Ridge fluorescence detectors and surface detector array in hybrid mode is presented. σ_inel_p−air is observed to be 520.1 ± 35.8 [Stat.] +25.0 −40 [Sys.] mb at √s = 73 TeV. The total proton-proton cross section is subsequently inferred from Glauber formalism and is found to be σ_tot_pp = 139.4 +23.4−21.3[Stat.] +15.0−24.0[Sys.] mb.
Najdeno v: ključnih besedah
Povzetek najdenega: ...Ultra high energy cosmic rays provide the highest known energy source...
Ključne besede: cosmic rays, astroparticles, proton-air cross section
Objavljeno: 04.02.2021; Ogledov: 103; Prenosov: 0
.pdf Polno besedilo (1,99 MB)

150.
Evidence for a supergalactic structure of magnetic deflection multiplets of ultra-high-energy cosmic rays
R. U. Abbasi, T. Abu-Zayyad, Mitsuhiro Abe, M. Allen, R. Azuma, E. Barcikowski, J. W. Belz, D. R. Bergman, S. A. Blake, J. P. Lundquist, 2020, izvirni znanstveni članek

Opis: Evidence for a large-scale supergalactic cosmic-ray multiplet (arrival directions correlated with energy) structure is reported for ultra-high-energy cosmic-ray (UHECR) energies above 1019 eV using 7 years of data from the Telescope Array (TA) surface detector and updated to 10 years. Previous energy–position correlation studies have made assumptions regarding magnetic field shapes and strength, and UHECR composition. Here the assumption tested is that, because the supergalactic plane is a fit to the average matter density of the local large-scale structure, UHECR sources and intervening extragalactic magnetic fields are correlated with this plane. This supergalactic deflection hypothesis is tested by the entire field-of-view (FOV) behavior of the strength of intermediate-scale energy–angle correlations. These multiplets are measured in spherical cap section bins (wedges) of the FOV to account for coherent and random magnetic fields. The structure found is consistent with supergalactic deflection, the previously published energy spectrum anisotropy results of the TA (the Hotspot and Coldspot), and toy-model simulations of a supergalactic magnetic sheet. The seven year data posttrial significance of this supergalactic structure of multiplets appearing by chance, on an isotropic sky, is found by Monte Carlo simulation to be 4.2σ. The 10 years of data posttrial significance is 4.1σ. Furthermore, the starburst galaxy M82 is shown to be a possible source of the TA Hotspot, and an estimate of the supergalactic magnetic field using UHECR measurements is presented.
Najdeno v: ključnih besedah
Ključne besede: extragalactic magnetic fields, ultra-high-energy cosmic radiation, cosmic rays, high energy astrophysics, astrophysical magnetism, cosmic ray astronomy, cosmic ray sources
Objavljeno: 05.02.2021; Ogledov: 111; Prenosov: 4
URL Polno besedilo (0,00 KB)
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