2015 Fiscal Year Final Research Report
Evolution of the early Universe based on the results of Planck and LHC
| Project/Area Number |
24740135
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Particle/Nuclear/Cosmic ray/Astro physics
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| Research Institution | Tohoku University |
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Principal Investigator |
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| Project Period (FY) |
2012-04-01 – 2016-03-31
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| Keywords | 宇宙物理 / インフレーション / ダークマター / 密度揺らぎ / ヒッグス粒子 / 超対称性理論 |
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| Outline of Final Research Achievements |
During the period of this grant, a standard-model like Higgs boson was discovered at the LHC, and various cosmological parameters were pinned down by the Planck results on the cosmic microwave background radiation anisotropies. However, so far, there is no hint for any physics beyond the standard model, primordial non-Gaussianity of density perturbations, primordial gravitational waves, dark radiation, the running of the scalar spectral index, and so on. Based on these experimental and observational results, I wrote 65 papers on various topics about the early Universe ranging from inflation model building based on the Higgs boson, right-handed sneutrinos, etc., evolution of the QCD axion and its isocurvature fluctuations, to production of axionic dark radiation by the modulus decay. I gave talks at various domestic and international conferences, including many plenary talks. I also gave series of intense lectures on inflation, lectures at summer and winter schools.
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| Free Research Field |
素粒子論的宇宙論
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