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We study a fermionic dark matter in a non-supersymmetric extension of thestandard model with a family symmetry based on D6xZ2xZ2. In our model, thefinal state of the dark matter annihilation is determined to be e+ e- by theflavor symmetry, which is consistent with the PAMELA result. At first, we showthat our dark matter mass should be within the range of 230 GeV - 750 GeV inthe WMAP analysis combined with mu to e gamma constraint. Moreover wesimultaneously explain the experiments of direct and indirect detection, bysimply adding a gauge and D6 singlet real scalar field. In the direct detectionexperiments, we show that the lighter dark matter mass ~ 230 GeV and thelighter standard model Higgs boson ~ 115 GeV is in favor of the observed boundsreported by CDMS II and XENON100. In the indirect detection experiments, weexplain the positron excess reported by PAMELA through the Breit-Wignerenhancement mechanism. We also show that our model is consistent with noantiproton excess suggested by PAMELA.

Direct and Indirect Detection of Dark Matter in D6 Flavor Symmetric Model