ATIC/PAMELA anomaly from fermionic decaying dark matter

作者：Chen Chuan Hung; Geng Chao Qiang; Zhuridov Dmitry V^*

来源：Physics Letters B, 2009, 675(1): 77-79.

DOI：10.1016/j.physletb.2009.03.067

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 10(26) s, respectively. Moreover, we note that this model includes a stable dark matter candidate as well.

• 出版日期2009-5-4
• 单位清华大学