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Decaying Dark Atom Constituents and Cosmic Positron Excess
Joint Authors
Laletin, M.
Kouvaris, Chris
Khlopov, M. Yu.
Belotsky, Konstantin
Source
Advances in High Energy Physics
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-04-16
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
We present a scenario where dark matter is in the form of dark atoms that can accommodate the experimentally observed excess of positrons in PAMELA and AMS-02 while being compatible with the constraints imposed on the gamma-ray ux from Fermi/LAT.
This scenario assumes that the dominant component of dark matter is in the form of a bound state between a helium nucleus and a -2 particle and a small component is in the form of a WIMP-like dark atom compatible with direct searches in underground detectors.
One of the constituents of this WIMP-like state is a +2 metastable particle with a mass of 1 TeV or slightly below that by decaying to e+e+, μ+μ+ and τ+τ+ produces the observed positron excess.
These decays can naturally take place via GUT interactions.
If it exists, such a metastable particle can be found in the next run of LHC.
The model predicts also the ratio of leptons over baryons in the universe to be close to -3.
American Psychological Association (APA)
Belotsky, Konstantin& Khlopov, M. Yu.& Kouvaris, Chris& Laletin, M.. 2014. Decaying Dark Atom Constituents and Cosmic Positron Excess. Advances in High Energy Physics،Vol. 2014, no. 2014, pp.1-10.
https://search.emarefa.net/detail/BIM-455103
Modern Language Association (MLA)
Belotsky, Konstantin…[et al.]. Decaying Dark Atom Constituents and Cosmic Positron Excess. Advances in High Energy Physics No. 2014 (2014), pp.1-10.
https://search.emarefa.net/detail/BIM-455103
American Medical Association (AMA)
Belotsky, Konstantin& Khlopov, M. Yu.& Kouvaris, Chris& Laletin, M.. Decaying Dark Atom Constituents and Cosmic Positron Excess. Advances in High Energy Physics. 2014. Vol. 2014, no. 2014, pp.1-10.
https://search.emarefa.net/detail/BIM-455103
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-455103