Extension of the standard model based on flavor symmetry

2014 Fiscal Year Final Research Report

• Project/Area Number: 22540271
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Particle/Nuclear/Cosmic ray/Astro physics
• Research Institution: Kanazawa University
• Principal Investigator: KUBO Jisuke 金沢大学, 数物科学系, 教授 (40211213)
• Project Period (FY): 2010-04-01 – 2015-03-31
• Keywords: 素粒子論 / 自発的対称性の破れ / 暗黒物質

Outline of Final Research Achievements

The Standard Model of Elementary Particles is extended on the basis on flavor symmetry and　supersymmetry. Flavor symmetry is introduced to fix the flavor structure of the quarks and leptons, while supersymmetry is introduced to soften the problem caused by the quadratic divergence in the Higgs mass correction. We have found that, if the quark masses and the Kobayashi-Maskawa quark mixing matrix are more precisely measured, the presence of a low energy flavor symmetry can be experimentally confirmed. We also have found that the dark matter mass and the electric dipole
moment of the neutron are due to flavor symmetry closely related to CP violation of the Bs meson, so that a precise measurement of CP violation of the Bs meson can confirm a low energy flavor symmetry. These results are reported in various renowned international conferences and published in different renowned international journals, including a review article in Fortschritt der Physik.

Free Research Field

素粒子論