Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1996-03-15
Phys.Rev. D54 (1996) 6032-6039
Physics
High Energy Physics
High Energy Physics - Phenomenology
17 pages, LaTeX, 4 postscript figures, version to be published in Phys. Rev. D, new figures, references added, minor changes i
Scientific paper
10.1103/PhysRevD.54.6032
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 $\mu$-term of the MSSM should also arise due to the vev of the flaton. With the extra assumption that $ m_L^2 - m_{H_u}^2 < 0 $, but of course $ m_L^2 - m_{H_u}^2 + |\mu|^2 > 0 $, we show that a complicated Affleck-Dine type of baryogenesis employing an $LH_u$ $D$-flat direction can naturally generate the baryon asymmetry of the Universe.
Kawasaki Masahiro
Stewart Ewan D.
Yanagida Takayuki
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