Neutrino Telescopes and High-Energy Cosmic Neutrinos

Palladino, Andrea; Spurio, M.; Vissani, Francesco

doi:10.3390/universe6020030

Cited by 28 publications

(21 citation statements)

References 119 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This is however in contrast with the association of a single high-energy neutrino event (IceCube Collaboration et al 2018a) with a gamma-ray flare of an AGN TXS 0506+056 and of an excess of low-energy events from the same direction (IceCube Collaboration et al 2018b). Detailed discussions of the AGN models of astrophysical neutrinos can be found, e.g., in reviews by Böttcher (2019); Cerruti (2019), while more general descriptions of IceCube observations and of various scenarios of the neutrino origin are presented, e.g., by Ahlers & Halzen (2018); Palladino et al (2020).…”

mentioning

confidence: 99%

Directional association of TeV to PeV astrophysical neutrinos with radio blazars

Plavin,

Kovalev,

Kovalev

et al. 2020

Preprint

View full text Add to dashboard Cite

We have shown recently that high-energy neutrinos above 200 TeV detected by IceCube are produced within several parsecs in the central regions of radio-bright active galactic nuclei (AGNs). To independently test this result and to extend the analysis to a wider energy range, we use here public data for all energies from seven years of IceCube observations. The IceCube point-source likelyhood map is analyzed against positions of AGNs from a large complete sample selected by their compact radio flux density. The latter analysis delivers 3.0σ significance with the combined post-trial significance of both studies being 4.1σ. The correlation is driven by a large number of AGNs. Together with fainter but physically similar sources not included in the sample, these radio-bright quasars may explain the entire IceCube astrophysical neutrino flux as derived from muon-track analyses. The neutrinos can be produced in interactions of relativistic protons with X-ray self-Compton photons in parsec-scale AGN jets.

show abstract

mentioning

confidence: 99%

Directional association of TeV to PeV astrophysical neutrinos with radio blazars

Plavin,

Kovalev,

Kovalev

et al. 2020

Preprint

View full text Add to dashboard Cite

show abstract

“…It is at this stage that the effect of vacuum oscillations of neutrinos and antineutrinos becomes essential. Oscillations of electron antineutrinos are accounted following [45] (see also [21])…”

Section: The Neutrino Oscillationsmentioning

confidence: 99%

The Diffuse Supernova Neutrino Background in the Standard and Double Collapse Models

Libanov¹,

Sharofeev²

2022

Preprint

View full text Add to dashboard Cite

The diffuse supernova neutrino background (DSNB) is a powerful future tool to constrain core-collapse explosion mechanisms without observation of a nearby event, and the corresponding signal has been calculated for a variety of collapse models. For Supernova (SN) 1987A, a peculiar double neutrino burst was detected, but models for the double collapse have never been studied in the DSNB context. Here, we fill this gap and compare the DSNB signal expected in the Standard Collapse (SC) and the Double Collapse (DC) models in various future detectors, including Hyper-Kamiokande, JUNO, DUNE and the Large Baksan Neutrino Telescope (LBNT). We calculate the spectra of diffuse neutrinos and antineutrinos in the DC model and determine the rate of registered events as a function of energy of the detected particle, taking into account detector parameters. For each detector, we estimate the corresponding uncertainties and the background and compare the signals expected for the SC and DC models. We conclude that the combination of DUNE and LBNT data will have the highest sensitivity to discriminate between the SC and DC models.

show abstract

“…The cross-sections dσ CR−p /dE ν are now computed by summing the contribution of CR-p scattering to ν e and ν µ (and their anti-neutrino counterparts). It can be shown (see e.g., Palladino et al 2020) that neutrino vacuum oscillations on Galactic distances distribute the total flux among all neutrino flavors almost equally.…”

Section: Neutrinos From Pion Decaymentioning

confidence: 99%

Simulating the Galactic multi-messenger emissions with HERMES

Dundovic

Evoli

Gaggero

et al. 2021

A&A

View full text Add to dashboard Cite

Context. The study of nonthermal processes such as synchrotron emission, inverse Compton scattering, bremsstrahlung, and pion production is crucial to understanding the properties of the Galactic cosmic-ray population, to shed light on their origin and confinement mechanisms, and to assess the significance of exotic signals possibly associated to new physics. Aims. We present a public code called HERMES which is designed generate sky maps associated to a variety of multi-messenger and multi-wavelength radiative processes, spanning from the radio domain all the way up to high-energy gamma-ray and neutrino production. Methods. We describe the physical processes under consideration, the code concept and structure, and the user interface, with particular focus on the python-based interactive mode. In particular, present the modular and flexible design that allows the user to easily extend the numerical package according to their needs. Results. In order to demonstrate the capabilities of the code, we describe the details of a comprehensive set of sky maps and spectra associated to all physical processes included in the code. We comment in particular on the radio, gamma-ray, and neutrino maps, and mention the possibility of studying signals stemming from dark matter annihilation. Conclusions. HERMES can be successfully applied to constrain the properties of the Galactic cosmic-ray population, improve our understanding of the diffuse Galactic radio, gamma-ray, and neutrino emission, and search for signals associated to particle dark matter annihilation or decay.

show abstract

Neutrino Telescopes and High-Energy Cosmic Neutrinos

Cited by 28 publications

References 119 publications

Directional association of TeV to PeV astrophysical neutrinos with radio blazars

Directional association of TeV to PeV astrophysical neutrinos with radio blazars

The Diffuse Supernova Neutrino Background in the Standard and Double Collapse Models

Simulating the Galactic multi-messenger emissions with HERMES

Contact Info

Product

Resources

About