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Reaction rate and energy-loss rate for photopair production by relativistic nuclei
Abstract
The process of e(+/-) pair production by relativistic nuclei on ambient photons is considered. The process is important for cosmic-ray nuclei in interstellar and intergalactic space as well as in galactic and extragalactic compact objects. The rate of this process is given by an integral of the cross section over the photon angular and energy distribution. In the case of isotropic photons, the angular integration is performed to provide an expression for the rate at given photon energy in the nucleus rest frame. The total rate then becomes a single integral of that rate over the photon energy distribution. Formulas are also given for the fractional energy loss of a relativistic nucleus colliding with a photon of a given energy in the rest frame. The nucleus energy-loss rate is integrated over the photon angular distribution in the case of isotropic photons, and simple fits are provided.
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Cited by
Big-bang nucleosynthesis and hadronic decay of long-lived massive particles
Kawasaki, M., Kohri, K., & Moroi, T. (2005) · Physical Review D · doi:10.1103/physrevd.71.083502 · Cited by 817
On the statistical significance of the GZK feature in the spectrum of ultra-high energy cosmic rays
De Marco, D., Blasi, P., & Olinto, A. V. (2003) · Astroparticle Physics · doi:10.1016/s0927-6505(03)00148-8 · Cited by 100
The Origin of Matter at the Base of Relativistic Jets in Active Galactic Nuclei
Romero, G., & Gutiérrez, E. (2020) · Universe · doi:10.3390/universe6070099 · Cited by 18
Metadata
- Authors
- Chodorowski, M. J., Zdziarski, A. A., & Sikora, M.
- Venue
- The Astrophysical Journal
- Publisher
- American Astronomical Society
- Published
- 1992-11
- Volume
- 400
- Pages
- 181
- ISSN
- 0004-637X (ISSN-L)
- 1538-4357
- OpenAlex
- W2034683667
- Cited by
- 181
- References
- 0
- FWCI
- 0.00
- Type
- journal article
- Language
- en
- Open access
- closed
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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).
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