| Project/Area Number |
22K14033
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| Research Category |
Grant-in-Aid for Early-Career Scientists
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| Allocation Type | Multi-year Fund |
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| Review Section |
Basic Section 15010:Theoretical studies related to particle-, nuclear-, cosmic ray and astro-physics
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| Research Institution | The University of Tokyo |
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Principal Investigator |
White Graham 東京大学, カブリ数物連携宇宙研究機構, 特任研究員 (40895752)
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| Project Period (FY) |
2022-04-01 – 2023-03-31
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| Project Status |
Discontinued (Fiscal Year 2022)
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| Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2024: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2023: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2022: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
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| Keywords | Phase transitions / baryogenesis / Baryogenesis / Electroweak |
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| Outline of Research at the Start |
One of the key questions facing our field is why is there more matter than antimatter. One of the most compelling paradigms to answer this question is electroweak baryogenesis. Next generation experiments promise to probe this exciting scenario, however there is a three decade old mystery where different methods of calculating the yield of baryon asymmetry produce radically different results. We present a road map to solve this mystery.
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| Outline of Annual Research Achievements |
In 2022 I submitted 10 papers to scientific journals with 4 published and the rest pending. I also gave 16 international talks and ran an international conference based on the theme of the Kahenhi titled “what the heck happens when the Universe boils” which focused on technical aspects of understanding cosmic phase transitions.
Furthermore, one of the papers, titled “Resummation and cancellation of the VIA source in electroweak baryogenesis” solved a 30 year old problem - the resonantly enhanced VIA source does not exist. We were able to locate the source in the Kadanoff Bahm equations and show that it cancels exactly. There, numerical projects that show a resonantly enhanced source are finding different physics. I made progress with people at Technical University of Munich in identifying what this physics is and expect a paper to be released in the next few months.
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