English

Affleck-Dine Baryogenesis after Thermal Inflation

High Energy Physics - Phenomenology 2009-10-28 v2 Astrophysics High Energy Physics - Theory

Abstract

We argue that an extension of the Minimal Supersymmetric Standard Model that gives rise to viable thermal inflation, and so does not suffer from a Polonyi/moduli problem, should contain right-handed neutrinos which acquire their masses due to the vacuum expectation value of the flaton that drives thermal inflation. This strongly disfavours SO(10) Grand Unified Theories. The μ\mu-term of the MSSM should also arise due to the vev of the flaton. With the extra assumption that mL2mHu2<0 m_L^2 - m_{H_u}^2 < 0 , but of course mL2mHu2+μ2>0 m_L^2 - m_{H_u}^2 + |\mu|^2 > 0 , we show that a complicated Affleck-Dine type of baryogenesis employing an LHuLH_u DD-flat direction can naturally generate the baryon asymmetry of the Universe.

Keywords

Cite

@article{arxiv.hep-ph/9603324,
  title  = {Affleck-Dine Baryogenesis after Thermal Inflation},
  author = {E. D. Stewart and M. Kawasaki and T. Yanagida},
  journal= {arXiv preprint arXiv:hep-ph/9603324},
  year   = {2009}
}

Comments

17 pages, LaTeX, 4 postscript figures, version to be published in Phys. Rev. D, new figures, references added, minor changes in the text

R2 v1 2026-07-22T14:30:19.409Z