2009年2月17日
Nambu-Goldstone Dark Matter and Cosmic Ray Electron and Positron Excess
Journal of High Energy Physics
- ,
- ,
- ,
- 巻
- 2009
- 号
- 4
- 記述言語
- 掲載種別
- 研究論文（学術雑誌）
- DOI
- 10.1088/1126-6708/2009/04/087
We propose a model of dark matter identified with a pseudo-Nambu-Goldstone
boson in the dynamical supersymmetry breaking sector in a gauge mediation
scenario. The dark matter particles annihilate via a below-threshold narrow
resonance into a pair of R-axions each of which subsequently decays into a pair
of light leptons. The Breit-Wigner enhancement explains the excess electron and
positron fluxes reported in the recent cosmic ray experiments PAMELA, ATIC and
PPB-BETS without postulating an overdensity in halo, and the limit on
anti-proton flux from PAMELA is naturally evaded.
boson in the dynamical supersymmetry breaking sector in a gauge mediation
scenario. The dark matter particles annihilate via a below-threshold narrow
resonance into a pair of R-axions each of which subsequently decays into a pair
of light leptons. The Breit-Wigner enhancement explains the excess electron and
positron fluxes reported in the recent cosmic ray experiments PAMELA, ATIC and
PPB-BETS without postulating an overdensity in halo, and the limit on
anti-proton flux from PAMELA is naturally evaded.
- リンク情報
-
- DOI
- https://doi.org/10.1088/1126-6708/2009/04/087
- arXiv
- http://arxiv.org/abs/arXiv:0902.2914
- URL
- http://arxiv.org/abs/0902.2914v1
- URL
- http://arxiv.org/pdf/0902.2914v1 本文へのリンクあり
- Scopus
- https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=67649562317&origin=inward
- Scopus Citedby
- https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=67649562317&origin=inward
- ID情報
-
- DOI : 10.1088/1126-6708/2009/04/087
- ISSN : 1126-6708
- eISSN : 1029-8479
- arXiv ID : arXiv:0902.2914
- SCOPUS ID : 67649562317