TY - JOUR
T1 - ATIC/PAMELA anomaly from fermionic decaying dark matter
AU - Chen, Chuan Hung
AU - Geng, Chao Qiang
AU - Zhuridov, Dmitry V.
N1 - Funding Information:
This work is supported in part by the National Science Council of ROC under Grant Nos: NSC-97-2112-M-006-001-MY3 and NSC-95-2112-M-007-059-MY3. One of us (D.V.Z.) would like to thank Prof. Kaoru Hagiwara for the hospitality at KEK and the exchange program between HEP at Taiwan and KEK.
PY - 2009/5/4
Y1 - 2009/5/4
N2 - 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.
AB - 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.
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U2 - 10.1016/j.physletb.2009.03.067
DO - 10.1016/j.physletb.2009.03.067
M3 - Article
AN - SCOPUS:64649085889
SN - 0370-2693
VL - 675
SP - 77
EP - 79
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
IS - 1
ER -