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Results on high energy galactic cosmic rays from the DAMPE space mission

by Leandro Silveri

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Submission summary

Authors (as registered SciPost users): Leandro Silveri
Submission information
Preprint Link:  (pdf)
Date submitted: 2022-08-31 09:23
Submitted by: Silveri, Leandro
Submitted to: SciPost Physics Proceedings
Proceedings issue: 21st International Symposium on Very High Energy Cosmic Ray Interactions (ISVHECRI2022)
Ontological classification
Academic field: Physics
  • Gravitation, Cosmology and Astroparticle Physics
Approach: Experimental


DAMPE (Dark Matter Particle Explorer) is a satellite-born experiment launched in 2015 in a sun-synchronous orbit at 500 km altitude, and it has been taking data in stable conditions ever since. Its main goals include the spectral measurements of cosmic electrons and positrons, protons, nuclei and gamma rays, up to very high energies. The detector's main features include the 32 radiation lengths deep calorimeter and large geometric acceptance, making DAMPE one of the most powerful space instruments in operation, covering with high statistics and small systematics the high energy frontier up to several hundreds TeV. The results of different species spectral measurements will be shown and discussed.

Current status:
Has been resubmitted

Reports on this Submission

Anonymous Report 1 on 2022-9-3 (Invited Report)

  • Cite as: Anonymous, Report on arXiv:2208.14300v1, delivered 2022-09-03, doi: 10.21468/SciPost.Report.5631


- good, valid and interesting results


- could be a little more concrete and better linguistically


The paper shows interesting results exactly fitting the target of the ISVHECRI conference. The content is valid for publication and I congratulate the entire DAMPE collaboration to this results and the sucessful experiment.
What follows are a list of some proposed corrections, questions and comments where I ask the author to treat before publication.

Requested changes

- "..up to very high energies": please specify in the abstract what you mean with very high energies.
- last sentence: would better read as: The results of spectral measurements of different species are shown and discussed.

section 1:
- first sentence "....for direct measurements of cosmic rays."
- what do you mean with "mulitple spectra"? of different experiments, of different masses, of ...?
- again "highest energy": not clear how you define highest energy

section 1.1:
- ...of cosmic-ray spectra of electrons, protons and nuclei;
- ... \gamma-ray
- ... self-interaction channels

section 1.2:
- either sub-detector or subdetector, please do not mix it
- why radiation lengths and interaction lengths is written in italic? (not needed)
- please specifiy what you mean with "since neutrons cannot be produced in there." where thesy cannot produced?

section 2:
- Proton and Helium results (not "protons")
- "simple power law" ==> "single power law"
- do not know what you mean with "rather than energy-depending"? do you mean mass dependence compared to charge dependence?
- "... the behaviour of cosmic rays at the highest...."
- The sentence "This type of measurement..." reads a bit strange, may be it is better like "This analysis is characterised by a very high statistical sample with very low contamination, resulting in a high-energy spectrum, which can also be compared with indirect measurements."
- can you specify a bit more what do you mean, what is the definition of "very low contamination"?
- EAS models: in particular the underlying hadronic interaction models.
- caption fig3: ...The DAMPE energy range is approaching....

section 3:
- Presently ==> Currently
- Spectra of heavy elements, like...

section 4:
- can you put references behind ...teh electrons [] and \gamma [] as well.

- nice list of references , where you always have reviewed journal articles, except for [14]. Can you change this?

  • validity: high
  • significance: high
  • originality: good
  • clarity: ok
  • formatting: reasonable
  • grammar: acceptable

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