The DOI matches its Crossref record; 15 of the 15 references it cites were found in a registry or an index.
Ultrahigh Energy Cosmic Rays without Greisen-Zatsepin-Kuzmin Cutoff
Open accessAbstract
We study the decays of metastable superheavy particles as the source of ultrahigh energy cosmic rays (UHE CR). These particles are assumed to constitute a tiny fraction ${\ensuremath{\xi}}_{X}$ of cold dark matter in the Universe. The UHE CR fluxes produced at the decays of $X$ particles are calculated. The dominant contribution is given by fluxes of photons and nucleons from the halo of our Galaxy and thus does not exhibit the GZK cutoff. The extragalactic components of UHE CR are suppressed by the smaller extragalactic density of $X$ particles and, hence, the cascade limit is relaxed. We discuss the spectrum of produced extensive air showers and a signal from a Virgo cluster as signatures of this model.
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Citations
Cites
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Cited by
Particle dark matter: evidence, candidates and constraints
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High-energy tests of Lorentz invariance
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Particle decays during the cosmic dark ages
Chen, X., & Kamionkowski, M. (2004) · Physical Review D · doi:10.1103/physrevd.70.043502 · Cited by 420
Neutrinos from propagation of ultrahigh energy protons
Engel, R., Seckel, D., & Stanev, T. (2001) · Physical Review D · doi:10.1103/physrevd.64.093010 · Cited by 414
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Metadata
- Authors
- Berezinsky, V., Kachelrieß, M., & Vilenkin, A.
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 1997-12-01
- Volume
- 79
- Issue
- 22
- Pages
- 4302-4305
- ISSN
- 0031-9007 (ISSN-L)
- 1079-7114
- OpenAlex
- W2020604098
- Cited by
- 379
- References
- 15
- FWCI
- 16.19
- Type
- journal article
- Language
- en
- Open access
- green
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- Berezinsky, V., Kachelrieß, M., & Vilenkin, A. (1997). Ultrahigh Energy Cosmic Rays without Greisen-Zatsepin-Kuzmin Cutoff. Physical Review Letters. https://doi.org/10.1103/physrevlett.79.4302
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Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
