| 研究課題/領域番号 |
23K13109
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| 研究種目 |
若手研究
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| 配分区分 | 基金 |
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| 審査区分 |
小区分15010:素粒子、原子核、宇宙線および宇宙物理に関連する理論
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| 研究機関 | 大学共同利用機関法人高エネルギー加速器研究機構 |
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研究代表者 |
Takhistov Volodymyr 大学共同利用機関法人高エネルギー加速器研究機構, 量子場計測システム国際拠点, 准教授 (10897771)
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| 研究期間 (年度) |
2023-04-01 – 2026-03-31
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| 研究課題ステータス |
交付 (2023年度)
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| 配分額 *注記 |
4,550千円 (直接経費: 3,500千円、間接経費: 1,050千円)
2025年度: 1,430千円 (直接経費: 1,100千円、間接経費: 330千円)
2024年度: 1,430千円 (直接経費: 1,100千円、間接経費: 330千円)
2023年度: 1,690千円 (直接経費: 1,300千円、間接経費: 390千円)
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| キーワード | dark matter / primordial black holes / new quantum fields / beyond standard model / astroparticle physics / cosmology / Dark Matter / Primordial Black Hole |
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| 研究開始時の研究の概要 |
The research aims to establish novel signatures of primordial black holes (PBHs) from the early Universe that could contribute to dark matter, relevant for multitude of upcoming observations. Further, the research will systematically explore synergy of PBHs and models of particle dark matter.
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| 研究実績の概要 |
I discovered a novel method using gravitational wave lensing to identify primordial black holes (PBHs) surrounded by particle dark matter (DM) halos on an event-by-event basis, a challenge for other approaches. Additionally, I demonstrated that NASA's soon-to-be-launched Roman Space Telescope is capable of uniquely probing extended DM structures, including PBHs with particle DM halos, with sensitivity up to four orders of magnitude beyond constraints. Further, I also discovered several mechanisms for efficient particle DM production Hawking evaporation of PBHs. Intriguingly, one such general mechanism allows to make regurgitated particle DM over huge range 1-10^(16) GeV from evaporating PBHs, themselves composed of collapsing particles, opening parameters considered excluded.
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| 現在までの達成度 (区分) |
現在までの達成度 (区分)
1: 当初の計画以上に進展している
理由
I discovered a novel method using gravitational wave lensing to identify primordial black holes (PBHs) surrounded by particle dark matter (DM) halos on an event-by-event basis, overcoming challenges faced by other approaches. I also demonstrated that upcoming Roman telescope can uniquely probe extended DM structures, including PBHs with particle DM halos, with unique sensitivity beyond current constraints. Additionally, I identified novel mechanisms for efficient particle DM production through PBH Hawking evaporation, revealing a broad range of particle DM masses from 1 to 10^(16) GeV. This interdisciplinary research in cosmology, astrophysics, and particle physics has significantly advanced across several directions with powerful insights into the co-existence of PBHs and particle DM.
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| 今後の研究の推進方策 |
I plan to further investigate scenarios and their manifestations where dark matter is composed of primordial black holes and particles. This research will integrate multiple disciplines, including cosmology, astrophysics, and particle physics. Further, the research is expected to connect theoretical models to variety of observations and experiments.
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