Neutrino masses, leptogenesis and decaying dark matter

作者：Chen Chuan Hung^*; Geng Chao Qiang; Zhuridov Dmitry V

来源：Journal of Cosmology and Astroparticle Physics, 2009, 2009(10): 001.

DOI：10.1088/1475-7516/2009/10/001

• dark matter theory
• leptogenesis
• cosmic ray theory
• neutrino theory

We study a simple extension of the standard model to simultaneously explain neutrino masses, dark matter and the matter-antimatter asymmetry of the Universe. In our model, the baryon asymmetry is achieved by the leptogenesis mechanism, while the decaying dark matter with the lifetime of O(10(26) s) provides a natural solution to the electron and positron excesses in Fermi and PAMELA satellite experiments. In particular, we emphasize that our model is sensitive to the structure at the endpoint around 1 TeV of the Fermi data. In addition, some of new particles proposed in the model are within the reach at the near future colliders, such as the Large Hadron Collider.

• 出版日期2009-10
• 单位清华大学