We discuss how the cosmic ray signals reported by the PAMELA and ATIC/PPB-BETS experiments may be understood in a Standard Model (SM) framework supplemented by type II seesaw and a stable SM singlet scalar boson as dark matter. A particle physics explanation of the 'boost' factor can be provided by including an additional SM singlet scalar field.
@article{arxiv.0904.2201,
title = {Type II Seesaw and the PAMELA/ATIC Signals},
author = {Ilia Gogoladze and Nobuchika Okada and Qaisar Shafi},
journal= {arXiv preprint arXiv:0904.2201},
year = {2009}
}