ATIC/PAMELA anomaly from fermionic decaying dark matter

Chuan Hung Chen, Chao Qiang Geng, Dmitry V. Zhuridov

Research output: Contribution to journalArticle

19 Citations (Scopus)


We demonstrate that an economical two Higgs doublet model can explain the electron and positron excesses in the recent ATIC and PAMELA experiments by the three body decays of the dark matter (DM) fermions without requiring the fine turning of the couplings and degeneracy of masses. We also show that the mass and lifetime of the decaying DM particle may not be fixed to be around 1 TeV and 1026 s, respectively. Moreover, we note that this model includes a stable dark matter candidate as well.

Original languageEnglish
Pages (from-to)77-79
Number of pages3
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Issue number1
Publication statusPublished - 2009 May 4

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

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