Astrophysical models for the origin of the positron
By P. Serpico. 2011
134 citations recorded by the source corpus.
Abstract Over the last three years, several satellite and balloon observatories have suggested intriguing features in the cosmic ray lepton spectra. Most notably, the PAMELA satellite has suggested an “anomalous” rise with energy of the cosmic ray positron fraction. In this article, we summarize the global picture emerging from the data and recapitulate the main features of different types of explanations proposed. The perspectives in testing different scenarios as well as inferring some astrophysical diagnostics from current/near future experiments are also discussed.
Subfields: Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/af52928258e3a92086e6dc0246d1482ced943c18
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In Nuclear and High Energy Physics
- U. Firenze
- Gran Sasso Science Institute
- E. Amato
- P. S. A. A. D. Arcetri
- Marco Cirelli
- V. Poulin
- P. Serpico
- Zhangbu Xu
Citations in the corpus
- Cosmic ray transport in the Galaxy: A review (2017, methodology): “A comprehensive review of these models was presented by Serpico (2012).”
- AMS-02 antiprotons, at last! Secondary astrophysical component and immediate implications for Dark Matter (2015, background): “Despite the fact that DM interpretations of the positron and, more generally, leptonic ‘excesses’ have been attempted (for a review see [13]), even before the advent of Ams-02 it had been recognized that explanations involving astrophysical sources were both viable and favoured (for a review see [14”
- Antinuclei in heavy-ion collisions (2018, background): “This observation cannot be explained by considering only secondary production of positrons [282, 283, 284].”
- Interpretation of AMS-02 electrons and positrons data (2014, unknown): “5 [6,9] [51, 119] G189.”
- The origin of galactic cosmic rays (2013, unknown): “…been linked to dark matter annihilation in the Galaxy, there are astrophysical explanations of this phenomenon that can account for the data without extreme assumptions (see the review paper by Serpico 2012 for a careful description of both astrophysical models and dark matter inspired models).”