RECORD
Pinpointing the knee of cosmic rays with diffuse PeV gamma-rays and neutrinos
High Energy Astrophysical Phenomena · Submitted 30 Dec 2013
abstract compiled · 2026-09-23 · no language-model review
The authors' main claim By comparing the neutrino spectrum with the recent observations by IceCube experiment, we find that the diffuse neutrinos from interactions between the cosmic rays and the interstellar medium may not be responsible to the majority of the IceCube events.
The compiled record
The paper's own sentences, arranged. Each label is drawn from a closed vocabulary; the number beside it is the probability the classifier gave that label. Numbers in the tables are the authors', checked by code. No sentence in this record was written by a model.
Open the compiled record
The abstract, sentence by sentence
The origin of the knee in cosmic ray spectrum remains to be an unsolved fundamental problem. There are various kinds of models which predict different break positions and the compositions of the knee. In this work, we suggest to use diffuse $\gamma$-rays and neutrinos as probes to test these models. Based on several typical types of the composition models, the diffuse $\gamma$-ray and neutrino spectra are calculated, which show distinctive cutoff behaviours at energies from tens of TeV to multi-PeV. The expected flux will be observable by the newly upgraded Tibet-AS$\gamma$+MD (muon detector) experiment as well as more sensitive future projects, such as LHAASO and HiSCORE. By comparing the neutrino spectrum with the recent observations by IceCube experiment, we find that the diffuse neutrinos from interactions between the cosmic rays and the interstellar medium may not be responsible to the majority of the IceCube events. Future measurements of the neutrinos may be able to identify the Galactic diffuse component and further shed light on the problem of the knee of cosmic rays.
background contribution method result interpretation main claim
| # | sentence | role | the authors' own work | states the main conclusion | strength |
|---|---|---|---|---|---|
| s0 | The origin of the knee in cosmic ray spectrum remains to be an unsolved fundamental problem. | background 0.62 | 0.03 | 0.03 | asserted 0.99 |
| s1 | There are various kinds of models which predict different break positions and the compositions of the knee. | background 0.98 | 0.03 | 0.02 | asserted 0.98 |
| s2 | In this work, we suggest to use diffuse $\gamma$-rays and neutrinos as probes to test these models. | contribution 0.79 | 0.51 | 0.09 | hedged possibility 0.87 |
| s3 | Based on several typical types of the composition models, the diffuse $\gamma$-ray and neutrino spectra are calculated, which show distinctive cutoff behaviours at energies from tens of TeV to multi-PeV. | result 0.78 | 0.92 | 0.22 | asserted 1.00 |
| s4 | The expected flux will be observable by the newly upgraded Tibet-AS$\gamma$+MD (muon detector) experiment as well as more sensitive future projects, such as LHAASO and HiSCORE. | result 0.38 | 0.25 | 0.10 | asserted 0.68 |
| s5 | By comparing the neutrino spectrum with the recent observations by IceCube experiment, we find that the diffuse neutrinos from interactions between the cosmic rays and the interstellar medium may not be responsible to the majority of the IceCube events. | result 0.92 | 0.90 | 0.27 | hedged possibility 0.77 |
| s6 | Future measurements of the neutrinos may be able to identify the Galactic diffuse component and further shed light on the problem of the knee of cosmic rays. | future work 0.98 | 0.09 | 0.23 | hedged possibility 1.00 |
What was examined, and what was not
- arXiv listing abstract v2
- full text
- figures and tables
- references and citing sentences
- relations to other papers
- P abstract
- S sections
- T body sentences
- C citations
- R cross-paper relations
The paper
Original abstract
The origin of the knee in cosmic ray spectrum remains to be an unsolved fundamental problem. There are various kinds of models which predict different break positions and the compositions of the knee. In this work, we suggest to use diffuse $\gamma$-rays and neutrinos as probes to test these models. Based on several typical types of the composition models, the diffuse $\gamma$-ray and neutrino spectra are calculated, which show distinctive cutoff behaviours at energies from tens of TeV to multi-PeV. The expected flux will be observable by the newly upgraded Tibet-AS$\gamma$+MD (muon detector) experiment as well as more sensitive future projects, such as LHAASO and HiSCORE. By comparing the neutrino spectrum with the recent observations by IceCube experiment, we find that the diffuse neutrinos from interactions between the cosmic rays and the interstellar medium may not be responsible to the majority of the IceCube events. Future measurements of the neutrinos may be able to identify the Galactic diffuse component and further shed light on the problem of the knee of cosmic rays.
Human review
References
How the literature uses it
5 arXiv papers cite this in 5 sentences
Papers citing it · 3 sentences without a confident label
Cites it as background 2 papers
-
There are many models proposed to explain these diffuse neutrinos, e.g., produced by Galactic cosmic ray (CR) propagation or Galactic point sources [ref] , by extragalactic sources such as gamma-ray bursts (GRBs) [ref] , active galactic nuclei (AGN) jets [ref] or cores [ref] , star forming galaxies [ref] and starbutrst galaxies [ref] , and by cosmogenic neutrinos from ultrahigh energy CR interactions with cosmic microwave background (CMB) [ref] .
Can FSRQs produce the IceCube detected diffuse neutrino emission? · Introduction · 0.99
-
The Galactic origins include the point source contribution [ref] , and extended and diffuse sources due to Galactic cosmic ray (CR) interaction with the interstellar medium (ISM) during their propagation [ref] .
Implications of Fermi-LAT observations on the origin of IceCube neutrinos · Introduction · 0.98
What it cites · 5 sentences without a confident label
Uses data or values from 1 paper
-
The number of events exceeds the standard atmospheric background estimate by 2.8$σ$ and 3.3$σ$ respectively, and may imply an astrophysical origin [ref] .
Evidence for High-Energy Extraterrestrial Neutrinos at the IceCube Detector · Introduction · 0.85
Discussion
Know something about this paper? Leave a comment, or highlight any passage above to comment on it.