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pro vyhledávání: '"Electromagnetic cascades"'
We simulate dark-vector, $V$, production from electromagnetic cascades at the recently approved SHiP experiment. The cascades (initiated by photons from $\pi^0\rightarrow \gamma \gamma$) can lead to 3-4 orders of magnitude increase of the event rate
Externí odkaz:
http://arxiv.org/abs/2412.01880
Lorentz invariance violation is a feature of several quantum gravity models in which Lorentz symmetry is broken at high energies, leading to potential changes in particle behavior and interactions. In this study, we investigate vacuum Cherenkov radia
Externí odkaz:
http://arxiv.org/abs/2412.17514
The propagation of very-high-energy gamma-rays (VHEGRs) in the extragalactic space offers the opportunity to study astrophysical phenomena not reproducible in laboratories. In particular, the deviation from predictions of the observed photon flux fro
Externí odkaz:
http://arxiv.org/abs/2405.15390
Lorentz invariance violation (LIV) is a phenomenon featuring in various quantum gravity models whereby Lorentz symmetry is broken at high energies, potentially impacting the behaviour of particles and their interactions. Here we investigate the pheno
Externí odkaz:
http://arxiv.org/abs/2312.10803
Autor:
Uryson, A.
We discuss the magnetic field influence on diffuse gamma-ray emission from extragalactic electromagnetic cascades initiated by ultra-high energy cosmic rays. Regions in space vary considerably in field strength: it is possibly of 10^(-12) G and lower
Externí odkaz:
http://arxiv.org/abs/2310.08769
Publikováno v:
Computer Physics Communications, 299 (2024) 109154
An ultra high energy electromagnetic cascade, a purely leptonic process and initiated by either photons or $e^\pm$, can be a source of high energy neutrinos. We present a public python3 code, MUNHECA, to compute the neutrino spectrum by taking into a
Externí odkaz:
http://arxiv.org/abs/2310.01510
On Numerical Simulations of Intergalactic Electromagnetic Cascades with Lorentz Invariance Violation
Lorentz invariance violation (LIV) is a proposed phenomenon where Lorentz symmetry is violated at high energies, potentially affecting particle dynamics and interactions. We use numerical simulations with the CRPropa framework to investigate LIV in g
Externí odkaz:
http://arxiv.org/abs/2307.11421
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Autor:
Zhang, B. Theodore, Murase, Kohta
Publikováno v:
Mon.Not.Roy.Astron.Soc. 524 (2023) 76
Very-high-energy (VHE) $\gamma$-rays ($\gtrsim 0.1\rm~TeV$) and neutrinos are crucial for identifying accelerators of ultrahigh-energy cosmic rays (UHECRs), but this is challenging especially for UHECR nuclei. In this work, we develop a numerical cod
Externí odkaz:
http://arxiv.org/abs/2302.14048
Autor:
Uryson, Anna
Publikováno v:
Universe 2021, 7, 287
In this paper intergalatic electromagnetic cascades are used as a probe of cosmic ray sources. This is achieved as follows. In extragalactic space cosmic rays initiate electromagnetic cascades in which gamma-ray and neutrino emission arises. We used
Externí odkaz:
http://arxiv.org/abs/2211.16556