High‐Energy Neutrinos from the Cosmos

Halzen, F.

doi:10.1002/andp.202100309

Cited by 5 publications

(7 citation statements)

References 80 publications

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“…Cherenkov light induced by relativistic charged particles passing through the medium is detected in the array, and the recorded information can be used to reconstruct the direction and energy of the incoming neutrino by which those charged particles were produced. All-flavour neutrino interactions can be detected in neutrino telescopes which have already discovered the existence of cosmic fluxes [10]. Track-like events, induced by charged current muon neutrino interactions allow a precise directional reconstruction (typically better than 0.5 • angular resolution), while all the other neutrino flavours will produce shower-like signature in which the direction is rather poorly reconstructed (2-10 • uncertainties) but the energy can be obtained with quite good accuracy (up to ∼15% uncertainties).…”

Section: Selected Results From Neutrino Telescopesmentioning

confidence: 99%

“…On the other hand, the discovery of GCR accelerators using neutrinos from hadronic mechanisms will require data from the next generation neutrino telescope KM3NeT [16] which is currently being built in the Mediterranean Sea and has been specifically optmised for this task [17]. [8], and the all-sky diffuse flux measured in IceCube [10].…”

Section: Discussionmentioning

confidence: 99%

“…Such flux can account for, at most, 10% of the overall diffuse neutrino flux detected by IceCube (described in ref. [10]).…”

Section: Pos(now2022)055mentioning

confidence: 99%

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Status of high-energy neutrino searches in the Galaxy

Fusco¹

2022

Proceedings of Neutrino Oscillation Workshop — PoS(NOW2022)

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The presence of cosmic rays in our galaxy can be tracked with neutral messengers, such as photons and neutrinos. Photons are observed at various wavelengths, and gamma-ray observations from GeV to PeV scales have given an important insight on the behaviour of charged particles in the Milky Way. However, both leptonic -photon emission from processes involving electrons -and hadronic -emission coming from proton or nuclei interactions -mechanisms can be used to explain the observed gamma-ray flux in many different high-energy individual sources. On the other hand, neutrinos can only be produced in hadronic processes where protons or nuclei in the cosmic ray flux interact in the interstellar matter and radiation fields. For this reason, neutrinos are the ideal probe to test cosmic-ray physics at their sources. On top of the neutrino emission from individual sources, a guaranteed flux of cosmic neutrinos is expected from cosmic rays that reside, propagate, and interact in the Milky Way. This is already visible in high-energy photon surveys of the Galactic Plane, and such flux has been already clearly attributed to cosmic rays interacting in the denser inner regions of the galaxy. The observation of neutrinos from the same regions would provide an additional source of information on the properties of galactic cosmic rays, also allowing to study them far away from Earth, where measurements are currently done, since neutrinos can travel undeflected and unabsorbed over such large distances. In this contribution, a review of searches for cosmic neutrinos in the Milky Way is provided.

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Section: Selected Results From Neutrino Telescopesmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Status of high-energy neutrino searches in the Galaxy

Fusco¹

2022

Proceedings of Neutrino Oscillation Workshop — PoS(NOW2022)

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“…For example, the very high-energy neutrinos that IceCube detected could originate from a variety of astrophysical sources, including active galactic nuclei, supernovae, hypernovae, white dwarf mergers, and others (Mészáros 2017). An important part of the motivation for building larger next-generation detectors like P-ONE is to get high enough angular resolution to attribute the neutrinos detected to localized astrophysical sources, which researchers can also study using "multimessenger" approaches: investigating the same sources using optical, radio, gamma-ray, and gravitational wave astronomy (Halzen 2021). Higher resolution and multimessenger follow-up will allow researchers to learn about the variety of conditions that generate these high-energy neutrinos and study how differences in astrophysical source conditions affect the associated neutrino flux.…”

Section: Discrimination and Variability Of Precipitating Conditionsmentioning

confidence: 99%

Observations, Experiments, and Arguments for Epistemic Superiority in Scientific Methodology

Boyd,

Matthiessen

2023

Philos. sci.

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This paper argues against general claims for the epistemic superiority of experiment over observation. It does so by dissociating the benefits traditionally attributed to experiment from physical manipulation. In place of manipulation, we argue that other features of research methods do confer epistemic advantages in comparison to methods in which they are diminished. These features better track the epistemic successes and failures of scientific research, cross-cut the observation/experiment distinction, and nevertheless explain why manipulative experiments are successful when they are.

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“…The NeUtrino and Seismic Electromagnetic Signals (NUSES) satellite will operate on a polar Sun-Synchronous Low Earth Orbit (LEO) at an altitude of 550 km, 97.8 • inclination, along the day/night boundary line. The mission has the main purpose of developing new technological and observation strategies for the measurement of the low energy cosmic ray component [1,2], together with the characterization of the Sun-Earth system [3], the investigation of the magnetosphereionosphere-lithosphere coupling (MILC) [4] and the characterization of high energy proton-induced background critical for the detection of astrophysical neutrinos [5] by future missions.…”

Section: Introductionmentioning

confidence: 99%

The NUSES space mission

Giovanni¹

2022

Proceedings of 41st International Conference on High Energy Physics — PoS(ICHEP2022)

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NUSES is a space mission promoted by the Gran Sasso Science Institute (GSSI) in collaboration with Thales Alenia Space and the Italian National Institute for Nuclear Physics (INFN). NUSES will be a technological pathfinder for the development and test of innovative technologies and observational strategies for future missions aiming at investigating cosmic radiation, astrophysical neutrinos, the Sun-Earth environment, space weather and magnetosphere-ionosphere-lithosphere coupling (MILC). The NUSES satellite will host two payloads, TERZINA and ZIRÉ. The first one, TERZINA, consists of a compact optical instrument equipped with a Cherenkov telescope based on the use of state-of-art of Silicon Photomultipliers (SiPMs). TERZINA will characterize the Cherenkov signature of high energy proton-induced background and therefore it will be instrumental for future missions for the detection of astrophysical earth-skimming neutrinos. The second payload, ZIRÉ, will be tailored to provide high precision measurements of the flux intensity of electrons, protons and light Cosmic Ray nuclei up to hundreds of MeV and of gamma-rays in the 0.1 MeV -10 MeV energy range. ZIRÉ will be also capable of pinpointing possible MILC events by measuring the charged particle flux. In this paper we report the overall description of the instruments onboard the NUSES satellite along with the scientific and technological objectives of the mission.

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High‐Energy Neutrinos from the Cosmos

Cited by 5 publications

References 80 publications

Status of high-energy neutrino searches in the Galaxy

Status of high-energy neutrino searches in the Galaxy

Observations, Experiments, and Arguments for Epistemic Superiority in Scientific Methodology

The NUSES space mission

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