| Project/Area Number |
23K13109
|
|---|
| Research Category |
Grant-in-Aid for Early-Career Scientists
|
| Allocation Type | Multi-year Fund |
|---|
| Review Section |
Basic Section 15010:Theoretical studies related to particle-, nuclear-, cosmic ray and astro-physics
|
|---|
| Research Institution | High Energy Accelerator Research Organization |
|---|
Principal Investigator |
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)
|
|---|
| Project Period (FY) |
2023-04-01 – 2026-03-31
|
| Project Status |
Granted (Fiscal Year 2023)
|
| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2025: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2024: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2023: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
|
|---|
| Keywords | dark matter / primordial black holes / new quantum fields / beyond standard model / astroparticle physics / cosmology / Dark Matter / Primordial Black Hole |
|---|
| Outline of Research at the Start |
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.
|
| Outline of Annual Research Achievements |
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.
|
| Current Status of Research Progress |
Current Status of Research Progress
1: Research has progressed more than it was originally planned.
Reason
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.
|
| Strategy for Future Research Activity |
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.
|
