Pith. sign in

REVIEW 6 cited by

Measurement of the cosmic ray helium energy spectrum from 70 GeV to 80 TeV with the DAMPE space mission

Not yet reviewed by Pith; the record is open.

Re-run · record.json Download PDF Read on arXiv ↗

This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.

SPECIMEN: schema-true, not a live event

T0 review · schema-true

One-sentence machine reading of the paper's core claim.

pith:XXXXXXXX · record.json · timestamp

arxiv 2105.09073 v2 pith:4LNGHFGN submitted 2021-05-19 astro-ph.HE hep-ex

Measurement of the cosmic ray helium energy spectrum from 70 GeV to 80 TeV with the DAMPE space mission

F. Alemanno , Q. An , P. Azzarello , F. C. T. Barbato , P. Bernardini , X. J. Bi , M. S. Cai , E. Catanzani
show 137 more authors
J. Chang D. Y. Chen J. L. Chen Z. F. Chen M. Y. Cui T. S. Cui Y. X. Cui H. T. Dai A. D'Amone A. De Benedittis I. De Mitri F. de Palma M. Deliyergiyev M. Di Santo T. K. Dong Z. X. Dong G. Donvito D. Droz J. L. Duan K. K. Duan D. D'Urso R. R. Fan Y. Z. Fan K. Fang F. Fang C. Q. Feng L. Feng P. Fusco M. Gao F. Gargano K. Gong Y. Z. Gong D. Y. Guo J. H. Guo X. L. Guo S. X. Han Y. M. Hu G. S. Huang X. Y. Huang Y. Y. Huang M. Ionica W. Jiang J. Kong A. Kotenko D. Kyratzis S. J. Lei S. Li W. L. Li X. Li X. Q. Li Y. M. Liang C. M. Liu H. Liu J. Liu S. B. Liu W. Q. Liu Y. Liu F. Loparco C. N. Luo M. Ma P. X. Ma T. Ma X. Y. Ma G. Marsella M. N. Mazziotta D. Mo X. Y. Niu X. Pan A. Parenti W. X. Peng X. Y. Peng C. Perrina R. Qiao J. N. Rao A. Ruina M. M. Salinas G. Z. Shang W. H. Shen Z. Q. Shen Z. T. Shen L. Silveri J. X. Song M. Stolpovskiy H. Su M. Su Z. Y. Sun A. Surdo X. J. Teng A. Tykhonov H. Wang J. Z. Wang L. G. Wang S. Wang X. L. Wang Y. Wang Y. F. Wang Y. Z. Wang Z. M. Wang D. M. Wei J. J. Wei Y. F. Wei S. C. Wen D. Wu J. Wu L. B. Wu S. S. Wu X. Wu Z. Q. Xia H. T. Xu Z. H. Xu Z. L. Xu Z. Z. Xu G. F. Xue H. B. Yang P. Yang Y. Q. Yang H. J. Yao Y. H. Yu G. W. Yuan Q. Yuan C. Yue J. J. Zang F. Zhang S. X. Zhang W. Z. Zhang Y. Zhang Y. J. Zhang Y. L. Zhang Y. P. Zhang Y. Q. Zhang Z. Zhang Z. Y. Zhang C. Zhao H. Y. Zhao X. F. Zhao C. Y. Zhou Y. Zhu
This is my paper
classification astro-ph.HE hep-ex
keywords energycosmicdampeheliumspectrummeasurementnucleiparticle
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
0 comments
read the original abstract

The measurement of the energy spectrum of cosmic ray helium nuclei from 70 GeV to 80 TeV using 4.5 years of data recorded by the DArk Matter Particle Explorer (DAMPE) is reported in this work. A hardening of the spectrum is observed at an energy of about 1.3 TeV, similar to previous observations. In addition, a spectral softening at about 34 TeV is revealed for the first time with large statistics and well controlled systematic uncertainties, with an overall significance of $4.3\sigma$. The DAMPE spectral measurements of both cosmic protons and helium nuclei suggest a particle charge dependent softening energy, although with current uncertainties a dependence on the number of nucleons cannot be ruled out.

discussion (0)

Sign in with ORCID, Apple, or X to comment. Anyone can read and Pith papers without signing in.

Forward citations

Cited by 6 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. Charge-dependent spectral softenings of primary cosmic-rays below the knee

    astro-ph.HE 2025-11 conditional novelty 7.0

    Direct measurements reveal charge-dependent spectral softenings in primary cosmic rays at a common rigidity of ~15 TV, rejecting mass-dependent softening at >99.999% confidence.

  2. The High-Energy Light Isotope eXperiment (HELIX) Instrument

    astro-ph.IM 2026-07 accept novelty 6.0

    HELIX is a balloon-borne detector that reconstructs light cosmic-ray isotope masses event-by-event; its 2024 Arctic engineering flight validated the major subsystems.

  3. On the Contribution of Local Sources to the Galactic Cosmic-Ray Spectrum: An Exact Series Solution for Two-Zone Diffusion

    astro-ph.HE 2026-06 unverdicted novelty 6.0

    Derives series solution for two-zone cosmic-ray diffusion and finds local-source probability at 10 TeV rises from 0.4% to 1.7-2.2% but remains model-dependent.

  4. Implication of multiple source populations of Galactic cosmic rays from proton and helium spectra

    astro-ph.HE 2025-11 conditional novelty 5.0

    The proton and helium spectra from 1 GeV to 10 PeV can be reproduced only by adding two local sources or a second background population on top of the standard cosmic-ray background.

  5. Transition from Diffusion to Drift-Dominated Cosmic Ray Transport and the Origin of the Knee

    astro-ph.HE 2026-06 unverdicted novelty 4.0

    Simulations show that drift dominance over diffusion can create a knee at PeV energies if parallel diffusion becomes energy-independent above 1 TeV, though some setups fail to match observed grammage.

  6. Probing Low-Luminosity Gamma-Ray Emission from SNR G296.5+10.0 and CCO 1E 1207.4-5209 with CTAO

    astro-ph.HE 2023-11 unverdicted novelty 3.0

    Numerical modeling with GALPROP predicts CTAO detectability of gamma rays from SNR G296.5+10.0 and CCO 1E 1207.4-5209 at 5 sigma after 50 hours, with hadronic processes dominating at lower energies and leptonic at higher.