ZEU-THAT

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2018-09-04
17:33
OpenAccess [PUBDB-2018-03368] Preprint/Report
; ; ; et al
Data-driven model of the cosmic-ray flux and mass composition from 10 GeV to $10^{11}$ GeV
[arXiv:1711.11432]
We present a new parametrization of the cosmic-ray flux and its mass composition over an energy range from 10 GeV to $10^{11}$ GeV. Our approach is data-driven and relies on theoretical assumptions as little as possible. [...]
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ddc:530
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2018-09-04
14:43
OpenAccess [PUBDB-2018-03367] Preprint/Report
; ; ; et al
The hadronic interaction model SIBYLL 2.3c and Feynman scaling
[arXiv:1709.07227]
 GO
The Monte Carlo model Sibyll has been designed for efficient simulation of hadronic multiparticle production up to the highest energies as needed for interpreting cosmic ray measurements. For more than 15 years, version 2.1 of Sibyll has been one of the standard models for air shower simulation. [...]
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2018-09-04
14:26
[PUBDB-2018-03366] Master Thesis

Cosmogenic neutrinos as secondary messengers of Ultra-High Energy Cosmic Rays
x () = Masterarbeit, Humboldt-Universität zu Berlin, 2016

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2018-09-04
14:20
[PUBDB-2018-03365] Master Thesis

Implications of collision dynamics in Gamma-Ray Burst internal shocks on the production of multiple astrophysical messengers
x () = Masterarbeit, KIT Karlruhe, 2017

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2018-09-04
14:12
OpenAccess [PUBDB-2018-03364] Dissertation / PhD Thesis
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Implications of physics beyond the Standard Model in the quark and lepton sectors
Humboldt-Universität zu Berlin 154 pp. () [10.18452/19174] = Dissertation, Humboldt-Universität zu Berlin, 2018  GO
Das Standardmodell (SM) der Teilchenphysik hat sich in der Praxis als vielseitige Theorie bewährt, dennoch deuten nichtverschwindende Neutrinomassen, dunkle Materie und Baryonenasymmetrie auf Physik jenseits des SM (BSM) hin. Um also ein mit den Beobachtungen konsistentes Modell zu entwickeln, ist eine umfassendere Theorie nötig. [...]
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2018-09-04
14:01
OpenAccess [PUBDB-2018-03363] Journal Article/Contribution to a conference proceedings
; ; ; et al
The hadronic interaction model Sibyll – past, present and future
XIX International Symposium on Very High Energy Cosmic Ray Interactions, ISVHECRI 2016, MoscowMoscow, Russia, 22 Aug 2016 - 27 Aug 20162016-08-222016-08-27 The European physical journal / Web of Conferences 145, 08001 () [10.1051/epjconf/201714508001]  GO
Sibyll is one of the first microscopic interaction models that was specifically developed for interpreting cosmic ray data. It combines non-perturbative concepts of simulating hadronic particle production with predictions derived from perturbative QCD calculations, focusing on forward particle production of relevance in studying cosmic ray interactions [...]
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2018-09-04
13:54
OpenAccess [PUBDB-2018-03362] Journal Article/Report/Contribution to a conference proceedings
; ; ; et al
The hadronic interaction model Sibyll 2.3c and Feynman scaling
[arXiv:1709.07227]
35th International Cosmic Ray Conference, ICRC2017, BusanBusan, South Korea, 10 Jul 2017 - 20 Jul 20172017-07-102017-07-20 Proceedings of Science (ICRC2017), 301 () [10.22323/1.301.0301]  GO
The Monte Carlo model Sibyll has been designed for efficient simulation of hadronic multiparticle production up to the highest energies as needed for interpreting cosmic ray measurements. For more than 15 years, version 2.1 of Sibyll has been one of the standard models for air shower simulation. [...]
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2018-09-04
11:00
OpenAccess [PUBDB-2018-03352] Report/Journal Article
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A multi-component model for observed astrophysical neutrinos
[DESY-18-020; arXiv:1801.07277]
We propose a multi-component model for the observed diffuse neutrino flux, including the residual atmospheric backgrounds, a Galactic contribution (such as from cosmic ray interactions with gas), an extra-galactic contribution from pp interactions (such as from starburst galaxies) and a hard extragalatic contribution from photo-hadronic interactions at the highest energies (such as from Tidal Disruption Events or Active Galactic Nuclei). We demonstrate that this model can address the key problems of astrophysical neutrino data, such as the different observed spectral indices in the high-energy starting and through-going muon samples, a possible anisotropy due to Galactic events, the non-observation of point sources, and the constraint from the extragalatic diffuse gamma-ray background. [...]
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2018-09-04
10:54
arXiv [PUBDB-2018-03351] Report/Journal Article
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The importance of observing astrophysical tau neutrinos
[arXiv:1804.04965]
The evidence of a new population of diffuse high-energy neutrinos, obtained by IceCube, has opened a new era in the field of neutrino physics. Up to now the events detected are still without any source counterpart. [...]
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2018-09-04
10:42
OpenAccess [PUBDB-2018-03350] Preprint/Report
; ; ; et al
Interpretation of the diffuse astrophysical neutrino flux in terms of the blazar sequence
[arXiv:1806.04769]
 GO
We study if the diffuse astrophysical neutrino flux can come from blazar jets -- a subclass of Active Galactic Nuclei (AGNs) -- while it, at the same time, respects the blazar stacking limit based on source catalogs and is consistent with the observation from TXS 0506+056. We compute the neutrino flux from resolved and unresolved sources using an averaged, empirical relationship between electromagnetic spectrum and luminosity, known as the {\em blazar sequence}, for two populations of blazars (BL Lacs and FSRQs). [...]
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