We discuss the cosmic ray spectra in annihilating/decaying Nambu-Goldstone dark matter models. The recent observed positron/electron excesses at PAMELA and Fermi experiments are well fitted by the dark matter with a mass of 3TeV for the annihilating model, while with a mass of 6 TeV for the decaying model. We also show that the Nambu-Goldstone dark matter models predict a distinctive gamma-ray spectrum in a certain parameter space.
@article{arxiv.0908.3530,
title = {Cosmic Ray Spectra in Nambu-Goldstone Dark Matter Models},
author = {Masahiro Ibe and Hitoshi Murayama and Satoshi Shirai and Tsutomu T. Yanagida},
journal= {arXiv preprint arXiv:0908.3530},
year = {2009}
}