| Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2020: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2019: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2018: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2017: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
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| Outline of Final Research Achievements |
We consider a model of two-component dark matter based on a hidden U(1)D symmetry, in which relic densities of the dark matter are determined by forbidden channels and thermal freeze-out. A large self-interaction of the lighter dark matter component can be induced, which may solve the small scale problems of Lambda CDM model. Detectabilities of these dark matter particles are explored.
We also investigate the testability of a scale invariant extension of the standard model using the GW background produced by the chiral phase transition in a strongly interacting QCD-like hidden sector, which triggers the electroweak phase transition.
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