Dark matter models and their application to cosmology and collider phenomenology

2017 Fiscal Year Final Research Report

• Project/Area Number: 26800123
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Particle/Nuclear/Cosmic ray/Astro physics
• Research Institution: The University of Tokyo
• Principal Investigator: Hamaguchi Koichi 東京大学, 大学院理学系研究科(理学部), 准教授 (80431899)
• Project Period (FY): 2014-04-01 – 2018-03-31
• Keywords: 暗黒物質 / 初期宇宙論 / LHC

Outline of Final Research Achievements

We proposed ``flaxion model”. This model not only explains the hierarchical flavor structure in the quark and lepton sector (including the neutrino sector), but also solves the strong CP problem as well as the Dark Matter puzzle. Moreover, the model can also explain the inflation and the cosmological baryon asymmetry in the Universe.
We also studied comprehensively the constraints and future prospects of the search for Higgs- and Z-resonant O(10 GeV) neutralino dark matter in supersymmetric models. It was shown that almost all the parameter space of the scenario will be probed complementarily by the collider search and the direct detection experiments.
We also conducted several other theoretical researches on Dark Matter.

Free Research Field

素粒子論