FY2023 "What is dark matter? - Comprehensive study of the huge discovery space in dark matter"

Asia/Tokyo
Description

 

FY2023 "What is dark matter? - Comprehensive study of the huge discovery space in dark matter"

Date: March 7 & 8, 2024

Venue: Panasonic Auditorium, Yukawa Hall, Yukawa Institute for Theoretical Physics, Kyoto University, Kyoto, Japan

Overview: 

ダークマターはその存在が確実であり、宇宙の星や銀河を作った立役者だが、その正体は不明である。今までは素粒子物理学の要請から、約二桁の質量範囲のWIMPパラダイムに研究が集中していたが、2010年代の実験・観測で制限が厳しくなり、WIMP以外の候補への関心が高まっている。本研究領域では、ダークマターの質量で90桁にわたる広大なディスカバリースペースを網羅的にカバーするため、今までにない多角的な方法で理論から宇宙観測・地上実験にまたがる研究領域を拓くことを目指す。近年急速に技術が成熟したレーザー干渉計や、すばる観測・加速器・人工衛星 ・重力波・高エネルギーニュートリノを含むタイムリーな実験・観測を用いた研究を展開する。特に、日本が投資してきた既存の最先端施設を有効活用し、若手研究者のユニークなアイデアによって工夫を加えることでインパクトのある研究成果を導出することを目指す。天文学・物理学・工学の分野において融合的で飛躍的な研究の展開・開拓することを目指す。

 本シンポジウムでは、各計画研究グループの研究、研究期間中 (R2-R6年度) に目指すゴール、F2023年度までの進捗状況を紹介する。

 

“Dark matter” certainly exists and plays a crucial role in formation of all cosmic structures such as galaxies. However, the nature of dark matter remains a mystery. As guided by particle physics, most efforts of dark matter search have been focused on Weakly Interacting Massive Particles (WIMP) candidates in the mass range of two order magnitudes, but observations and experiments in 2010’s did not find any clue of WIMP. There is now growing interest in non-WIMP dark matter candidates. In this research area, to comprehensively cover the vast discovery space of dark matter search spanning 90 orders of magnitudes in the mass scale, we aim at opening up research area using theoretical approaches, observations of the Universe and terrestrial experiments. Observation and experimental research groups will explore the nature of dark matter using new methods based on the unique idea/consideration from this research group and taking advantage of the cutting-edge observational data of the Universe. 

 

Members and PI of each research group:

  • PI: Hitoshi Murayama (Kavli IPMU/UC Berkeley)

    研究代表者 村山 斉(Kavli IPMU/バークリー大)

  • Group A01: Fuminobu Takahashi (Tohoku U.) "light dark matter"

    研究項目A01 高橋 史宜 (東北大)「軽いダークマターの生成と進化に関する理論的探究」

  • Group A02 Kohta Murata (PSU/Kyoto U.) "heavy dark matter"

    研究項目A02 村瀬 孔大 (PSU/Kyoto U.)「マルチメッセンジャーで探る重 いダークマター 」

  • Group A03 Chulmoon Yoo (Nagoya U.) "macroscopic dark matter"

    研究項目A03 柳 哲文 「原始ブラックホール・巨視的ダ ークマターの探究 」

  • GroupB01 Yuta Michimura (U. Tokyo) "laser interferometer"

    研究項目B01 道村 唯太(東京大)「重力波望遠鏡とレーザー干渉計 実験による超軽量ダークマター 探索 」

  • Group B02 Masahiro Takada (Kavli IPMU) "Subaru spectroscopy" 

    研究項目B02 高田 昌広(Kavli IPMU)「すばる多天体分光観測によるダ ークマター探索 」

  • Group B03 Satoshi Miyazaki (NAOJ) "wide-field, high-cadence imaging"

    研究項目B03 宮崎 聡 (国立天文台)「広視野かつ高時間分解能天体イ メージングによるダークマター 探索 」

  • Group B04 Noriko Yamasaki (ISAS) "the innovative technical method/data in the X-ray energy spacey"

    研究項目B04 山崎 典子(ISAS)「X 線領域の観測技術の革新によ るダークマター探索」

  • Group B05 Shohei Nishida (KEK) "electron-positron accelerator experiment"

    研究項目B05  西田 昌平(KEK)「電子陽電子加速器によるダーク マター探索 」

  • Group B06 Eiichiro Komatsu (MPA) "cosmic microwave background"

    研究項目B06 小松 英一郎(MPA)「宇宙マイクロ波背景放射による ダークマター探索 」

  • Group C01 Masahito Yamazaki (Kavli IPMU) "quantum gravity"

    研究項目C01 山崎 雅人 「量子重力理論から迫るダークマ ター 」

  • Group C02 Shin'ichiro Ando (GRAPPA, U. Amsterdam) "cosmic structure formation"

    研究項目C02 安藤 真一郎(アムステルダム大)「宇宙構造形成理論から迫るダー クマター 」




Code of Conduct:
It is the policy of the Kavli Institute for the Physics and Mathematics of the Universe (Kavli IPMU) that all members and visitors will conduct themselves in a professional manner that is welcoming and free from any form of discrimination, harassment, or retaliation. Members and visitors will avoid any inappropriate actions or statements based on individual characteristics such as age, race, ethnicity, gender, sexual orientation, marital status, nationality, or political affiliation. Disruptive or harassing behavior of any kind will not be tolerated. Harassment includes but is not limited to inappropriate or intimidating behavior and language, unwelcome jokes or comments, unwanted touching or attention, offensive images, photography without permission, and stalking. Members and visitors will treat each other with respect to create a collegial, inclusive, and professional environment at the Kavli IPMU.

 

Organizers:


Hitoshi Murayama (Kavli IPMU/Berkeley)
Masahiro Takada (Kavli IPMU)
 

Address:
Kavli Institute for the Physics and Mathematics of the Universe (Kavli IPMU),
the University of Tokyo, 5-1-5 Kashiwa-no-ha, Kashiwa City, Chiba 277-8583, Japan

 


file file


Participants
  • Albert Escrivà
  • Atsushi Taruya
  • Chulmoon Yoo
  • Eiichiro Komatsu
  • Fumihiro Naokawa
  • Fuminobu Takahashi
  • Hironao Miyatake
  • Hitoshi MURAYAMA
  • Ippei Obata
  • Junji Hisano
  • Kai Murai
  • Kohei Hayashi
  • Kohei Kamada
  • Koichiro Uehara
  • Maresuke Shiraishi
  • Masahiro Takada
  • Masahito Yamazaki
  • Masaki Yamada
  • Nagisa Hiroshima
  • Noriko Yamasaki
  • Risshin Okabe
  • Ryo Saito
  • Ryuichi Takahashi
  • Satoshi Shirai
  • Satoshi Tanaka
  • Shin'ichiro Ando
  • Shinji MIYOKI
  • Shinta Kasuya
  • Shohei Nishida
  • Shunichi Horigome
  • Sourav Dey
  • Takahiro Nishimichi
  • Takashi Okamoto
  • thomas czank
  • Tomoaki Ishiyama
  • Tomonori Ikeda
  • Toshiya Namikawa
  • Yasuhiro Kishimoto
  • Yasutaka Koga
  • Yoshitaka Itow
  • Yuta Michimura
  • Yuta Yagi
  • Yutaka Unuma
  • 崇 藤間
Contact
  • Thursday, March 7
    • 9:30 AM 10:00 AM
      coffee 30m
    • 10:00 AM 10:10 AM
      Overview 10m
      Speaker: Hitoshi Murayama (UC Berkeley/Kavli IPMU)
    • 10:10 AM 10:50 AM
      B02
      • 10:10 AM
        Updates of B02 15m
        Speaker: Masahiro Takada (Kavli IPMU)
      • 10:25 AM
        Towards an accurate cluster cosmology using SDSS redMaPPer clusters and HSC-Y3 lensing measurement 25m
        Speaker: Tomomi Sunayama (Arizona U./Nagoya U.)
    • 10:50 AM 11:15 AM
      公募研究 "半対消滅過程による暗黒物質の加速と検証" 25m
      Speaker: Takashi Toma (Kanazawa U.)
    • 11:15 AM 12:00 PM
      B05
    • 12:00 PM 1:30 PM
      lunch break 1h 30m
    • 1:30 PM 2:30 PM
      A01
    • 2:30 PM 2:50 PM
      B02
    • 2:50 PM 3:35 PM
      A02
    • 3:35 PM 4:00 PM
      coffee break 25m
    • 4:00 PM 4:45 PM
      B06
    • 4:45 PM 5:10 PM
      Primordial black holes and stochastic gravitational wave background 25m
      Speaker: Sachiko Kuroyanagi (Madrid, IFT)
    • 5:10 PM 5:35 PM
      公募研究 “High-resolution cosmological simulations on the supercomputer Fugaku” 25m
      Speaker: Tomoaki Ishiyama (Chiba U.)
    • 9:00 AM 9:55 AM
      A03
      • 9:00 AM
        Updates of A03 10m
        Speaker: Chul-Moon Yoo (Nagoya U.)
      • 9:10 AM
        Numerical simulation of type II PBH formation 15m
        Speaker: Koichiro Uehara (Nagoya U.)
      • 9:25 AM
        Initial spins of primordial black holes formed with a soft equation of state 15m
        Speaker: Yasutaka Koga (Nagoya U.)
      • 9:40 AM
        Primordial Black Holes and Induced Gravitational Waves from a Smooth Crossover beyond Standard Model 15m
        Speaker: Albert Escriva (Nagoya U.)
    • 9:55 AM 10:20 AM
      公募研究 “Dark Matter Searches in Galactic Dwarf Spheroidals in the Subaru-PFS Era” 25m
      Speaker: Kohei Hayashi (Sendai College)
    • 10:20 AM 10:35 AM
      coffee break 15m
    • 10:35 AM 11:35 AM
      C02
    • 11:35 AM 12:00 PM
      Semi-analytic description of halo structures and its application 25m
      Speaker: Nagisa Hiroshima (U. Toyama)
    • 12:00 PM 1:30 PM
      lunch break 1h 30m
    • 1:30 PM 2:25 PM
      B04
    • 2:25 PM 2:50 PM
      CMB birefringence from axion strings 25m
      Speaker: Andrew Long (Rice U.)
    • 2:50 PM 3:15 PM
      公募研究 Takeshi Tsuru “"ISAI" Investigating Solar Axion by Iron-57” 25m
      Speaker: Takeshi Tsuru (Kyoto U.)
    • 3:15 PM 3:30 PM
      coffee break 15m
    • 3:30 PM 4:15 PM
      C01
    • 4:15 PM 5:05 PM
      B01
      • 4:15 PM
        Updates of B01 5m
        Speaker: Yuta Michimura (Caltech/RESCEU)
      • 4:20 PM
        Laser wavelength tuning for sensitivity improvement of DANCE for axion dark matter search 15m
        Speaker: Hinata Takidera (U. Tokyo)
      • 4:35 PM
        Ultralight dark matter search with KAGRA -the O3GK result and toward the O4 data analysis 15m
        Speaker: Jun’ya Kume (U of Padova)
      • 4:50 PM
        Exploring Ultralight Spin-2 Dark Matter with Gravitational Wave Detectors: Distinguishing Between Signals from Dark Photons and Scalar Dark Matter 15m
        Speaker: Yousuke Manita (Kyoto U.)
    • 5:05 PM 5:10 PM
      Closing remarks 5m