2003/05/31 by Masato Senami, MASATO SENAMI, Katsuji Yamamoto +1 · 7 citations
Computer Science · Physics and Astronomy · #Asymmetry #Baryogenesis #Baryon asymmetry #Computational Physics and Python Applications #Cosmology and Gravitation Theories #Higgs boson #Leptogenesis #Lepton #Minimal Supersymmetric Standard Model #Particle physics theoretical and experimental studies #Scalar (mathematics) #Superpotential #hep-ph
paper · pdf · doi:10.1142/s0217751x06029478
published in International Journal of Modern Physics A 21(06), 1291-1305 (World Scientific) · 8 Pages, 2 figures. The discussion about the stability of the VEV's of the Higgs triplets is added
arxiv created 2005/12/22 · openalex publication_date 2006/03/10 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
The leptogenesis with supersymmetric Higgs triplets is studied in the light of experimental verification in the TeV region. The lepton number asymmetry appears just after the inflation via multiscalar coherent evolution of Higgs triplets and antislepton on a flat manifold. If the Higgs triplet mass terms dominate over the negative thermal-log term for the Hubble parameter H comparable to the Higgs triplet mass M Δ , the asymmetry is fixed readily to some significant value by the redshift and rotation of these scalar fields, providing the sufficient lepton-to-entropy ratio n L /s ~ 10 -10 . This can be the case even with M Δ ~ 1 TeV for the reheating temperature T R ~ 10 6 GeV and the mass parameter M/λ ~ 10 22 GeV of the nonrenormalizable superpotential terms relevant for leptogenesis.