English

The New Minimal Standard Model

High Energy Physics - Phenomenology 2009-09-29 v2 Astrophysics High Energy Physics - Theory

Abstract

We construct the New Minimal Standard Model that incorporates the new discoveries of physics beyond the Minimal Standard Model (MSM): Dark Energy, non-baryonic Dark Matter, neutrino masses, as well as baryon asymmetry and cosmic inflation, adopting the principle of minimal particle content and the most general renormalizable Lagrangian. We base the model purely on empirical facts rather than aesthetics. We need only six new degrees of freedom beyond the MSM. It is free from excessive flavor-changing effects, CP violation, too-rapid proton decay, problems with electroweak precision data, and unwanted cosmological relics. Any model of physics beyond the MSM should be measured against the phenomenological success of this model.

Keywords

Cite

@article{arxiv.hep-ph/0405097,
  title  = {The New Minimal Standard Model},
  author = {Hooman Davoudiasl and Ryuichiro Kitano and Tianjun Li and Hitoshi Murayama},
  journal= {arXiv preprint arXiv:hep-ph/0405097},
  year   = {2009}
}

Comments

5 pages, 2 figures. The discussions expanded with clarifications. The version accepted for publication in Phys. Lett. B