Double-action dark matter, PAMELA and ATIC
High Energy Physics - Phenomenology
2015-05-13 v3 High Energy Astrophysical Phenomena
Abstract
Motivated by a two-bump (or 1-peak plus 1-hump) structure in the ATIC data, we perform a statistical analysis fitting the PAMELA and ATIC data to a dark matter model, in which the dark matter particle can undergo both annihilation and decay. Using a chi-square analysis we show that both data can be simultaneously fitted better with such a double-action dark matter particle. We use an existing neutrino mass model in literature to illustrate the idea.
Cite
@article{arxiv.0902.4035,
title = {Double-action dark matter, PAMELA and ATIC},
author = {Kingman Cheung and Po-Yan Tseng and Tzu-Chiang Yuan},
journal= {arXiv preprint arXiv:0902.4035},
year = {2015}
}
Comments
RevTex 18 pages, 4 figures; version 2: references corrected, an estimate modified; version 3, a new figure on annihilation, more discussion and references