Multimesseger Study of Heavy Dark Matter

• Project Area: What is dark matter? - Comprehensive study of the huge discovery space in dark matter
• Project/Area Number: 20H05852
• Research Category: Grant-in-Aid for Transformative Research Areas (A)
• Allocation Type: Single-year Grants
• Review Section: Transformative Research Areas, Section (II)
• Research Institution: Kyoto University
• Principal Investigator: 村瀬 孔大 京都大学, 基礎物理学研究所, 特任准教授 (00839433)
• Co-Investigator(Kenkyū-buntansha): 藤井 俊博 大阪公立大学, 大学院理学研究科, 准教授 (50706877) ; 廣島 渚 富山大学, 学術研究部理学系, 助教 (60845741) ; 山中 真人 法政大学, 理工学部, 助手 (70585992) ; 成子 篤 京都大学, 基礎物理学研究所, 特定助教 (80749507)
• Project Period (FY): 2020-11-19 – 2025-03-31
• Project Status: Granted (Fiscal Year 2024)
• Budget Amount: ¥55,380,000 (Direct Cost: ¥42,600,000、Indirect Cost: ¥12,780,000); Fiscal Year 2024: ¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000); Fiscal Year 2023: ¥14,950,000 (Direct Cost: ¥11,500,000、Indirect Cost: ¥3,450,000); Fiscal Year 2022: ¥15,860,000 (Direct Cost: ¥12,200,000、Indirect Cost: ¥3,660,000); Fiscal Year 2021: ¥14,170,000 (Direct Cost: ¥10,900,000、Indirect Cost: ¥3,270,000); Fiscal Year 2020: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
• Keywords: 素粒子(理論) / 宇宙線(理論) / 宇宙物理(理論) / 理論天文学 / ダークマター / マルチメッセンジャー / ニュートリノ / ガンマ線 / ダークマターハロー / 超高エネルギー宇宙線

Outline of Research at the Start

ダークマターの正体は究極の謎の一つであるが、その質量はTeVよりもずっと重く、電弱相互作用と強い相互作用の統一が期待される大統一スケール や量子重力が重要になるプランクスケールに近い可能性がある。人工の加速器で到達できるエネルギースケールを超える質量を持つような重いダークマターはその粒子数密度が少なく直接検出も困難と考えられており、探索には宇宙線やニュートリノ、ガンマ線や重力波を用いた間接検出が鍵となる。本研究では、急速に発展しつつあるマルチメッセンジャー観測のデータを最大限に活用し、重いダークマターの理論への新たな知見を得ることを目指す。

Outline of Annual Research Achievements

天体で加速された宇宙線が起こす粒子反応や重いダークマターの崩壊によって作られた高エネルギーニュートリノは宇宙背景放射ニュートリノと相互作用してカスケードを起こし、より低いエネルギーのニュートリノやガンマ線を作る可能性がある。ニュートリノ自己相互作用は素粒子標準モデルだけでなく標準モデルを超える理論でも期待されており、Muon g-2実験やハッブル定数問題との関連が議論されている。伝搬中のニュートリノ自己相互作用とカスケード過程を時間依存性を考慮して解く定式化を行い、数値コードを開発した。高エネルギーニュートリノ背景放射に結果を応用して、MeV質量の新ベクトル粒子が媒介する相互作用について制限を行った。ダークマターが対消滅して作られるニュートリノやガンマ線の場合、小スケールでのダークマターハローの性質を知ることは、背景放射フラックスの評価だけでなく銀河団や矮小銀河からのダークマター信号を調べる際に重要になる。そこで拡張されたPress-Schechter理論をもとに、ダークマターサブハローの質量関数の性質を記述する定式化を構築した。またプランク質量を超えるような重いダークマターの可能性として原始ブラックホールが議論されているが、原始ブラックホールからのジェットやその降着円盤風が銀河間空間に環境に与える影響を考察し、Leo Tと呼ばれる矮小銀河の観測を用いて原始ブラックホールがダークマターに占める割合についての新しい制限を得た。

Current Status of Research Progress

3: Progress in research has been slightly delayed.

Reason

新型コロナウィルスの影響により、ポスドクのDas氏とSong氏の雇用が遅延した。また研究会への出席、情報収集、発表や海外研究者との共同研究に支障があった。

Strategy for Future Research Activity

重いダークマターの制限において、超高エネルギーニュートリノとニュートリノ背景放射の銀河団と矮小銀河についてFermiによるガンマ線データとIceCubeによるニュートリノデータを解析し、重いダークマターの粒子の寿命や対消滅断面積について新しい制限を行う。

Research Products

• [Journal Article] Determination of coupling patterns by parallel searches for μ??→?e+ and μ??→?e? in muonic atoms (2023)
  • Author(s): Sato Joe、Sugawara Kohei、Uesaka Yuichi、Yamanaka Masato
  • Journal Title: Physics Letters B Volume: 836 Pages: 137617-137617
  • DOI: 10.1016/j.physletb.2022.137617
  • Peer Reviewed / Open Access
• [Journal Article] No smooth spacetime in Lorentzian quantum cosmology and trans-Planckian physics (2023)
  • Author(s): Matsui Hiroki、Mukohyama Shinji、Naruko Atsushi
  • Journal Title: Physical Review D Volume: 107 Issue: 4 Pages: 043511-043511
  • DOI: 10.1103/physrevd.107.043511
  • Peer Reviewed / Open Access
• [Journal Article] High-energy Neutrino Emission from Espresso-reaccelerated Ions in Jets of Active Galactic Nuclei (2023)
  • Author(s): R. Mbarek, K. Murase, D. Caprioli
  • Journal Title: Astrophys.J. Volume: 942 Issue: 1 Pages: 37-37
  • DOI: 10.3847/1538-4357/aca481
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Simulating neutrino echoes induced by secret neutrino interactions (2023)
  • Author(s): J. A. Carpio, K. Murase
  • Journal Title: JCAP Volume: 2 Issue: 02 Pages: 42-42
  • DOI: 10.1088/1475-7516/2023/02/042
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] External Inverse-compton and Proton Synchrotron Emission from the Reverse Shock as the Origin of VHE Gamma Rays from the Hyper-bright GRB 221009A (2023)
  • Author(s): B. T. Zhang et al.
  • Journal Title: Astrophys.J. Volume: 947 Issue: 1 Pages: L14-L14
  • DOI: 10.3847/2041-8213/acc79f
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Time-delayed neutrino emission from supernovae as a probe of dark matter-neutrino interactions (2023)
  • Author(s): J. A. Carpio, A. Kheirandish, K. Murase
  • Journal Title: JCAP Volume: 4 Issue: 04 Pages: 19-19
  • DOI: 10.1088/1475-7516/2023/04/019
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] High-energy neutrino emission from magnetized jets of rapidly rotating protomagnetars (2023)
  • Author(s): Bhattacharya Mukul、Carpio Jose A、Murase Kohta、Horiuchi Shunsaku
  • Journal Title: Monthly Notices of the Royal Astronomical Society Volume: 521 Issue: 2 Pages: 2391-2407
  • DOI: 10.1093/mnras/stad494
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Two-component jet model for multiwavelength afterglow emission of extremely energetic burst GRB 221009A (2023)
  • Author(s): Yuri Sato, Kohta Murase, Yutaka Ohira, and Ryo Yamazaki
  • Journal Title: Monthly Notices of the Royal Astronomical Society Letters Volume: 552 Issue: 1 Pages: 56-60
  • DOI: 10.1093/mnrasl/slad038
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Light curves of BSM-induced neutrino echoes in the optically-thin limit (2023)
  • Author(s): R. Eskenasy, A. Kheirandish, K. Murase
  • Journal Title: Phys.Rev.D Volume: -
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] High-energy cosmic neutrinos as a probe of the vector mediator scenario in light of the muon g－2 anomaly and Hubble tension (2023)
  • Author(s): J. A. Carpio et al.
  • Journal Title: Phys.Rev.D Volume: -
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Revisiting ultrahigh-energy constraints on decaying super-heavy dark matter (2023)
  • Author(s): S. Das, K. Murase, T. Fujii
  • Journal Title: Phys.Rev.D Volume: -
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] GeV Signatures of Short Gamma-Ray Bursts in Active Galactic Nuclei (2022)
  • Author(s): C. Yuan et al.
  • Journal Title: Astrophys.J. Volume: 932 Issue: 2 Pages: 80-80
  • DOI: 10.3847/1538-4357/ac6ddf
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Variable thermal energy injection from magnetar spin-down as a possible cause of stripped-envelope supernova light-curve bumps (2022)
  • Author(s): Moriya Takashi J、Murase Kohta、Kashiyama Kazumi、Blinnikov Sergei I
  • Journal Title: Monthly Notices of the Royal Astronomical Society Volume: 513 Issue: 4 Pages: 6210-6218
  • DOI: 10.1093/mnras/stac1352
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Candidate Tidal Disruption Event AT2019fdr Coincident with a High-Energy Neutrino (2022)
  • Author(s): S. Reush et al.
  • Journal Title: Phys.Rev.Lett. Volume: 128 Issue: 22 Pages: 221101-221101
  • DOI: 10.1103/physrevlett.128.221101
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] On the synthesis of heavy nuclei in protomagnetar outflows and implications for ultra-high energy cosmic rays (2022)
  • Author(s): M. Bhattacharya, S. Horiuchi, K. Murase
  • Journal Title: Mon.Not.Roy.Astron.Soc. Volume: 514 Issue: 4 Pages: 6011-6011
  • DOI: 10.1093/mnras/stac1721
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Testing the non-circularity of the spacetime around Sagittarius A* with orbiting pulsars (2022)
  • Author(s): Takamori Yohsuke、Naruko Atsushi、Sakurai Yusuke、Takahashi Keitaro、Yamauchi Daisuke、Yoo Chul-Moon
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 未定 Issue: Supplement_1 Pages: S217-S231
  • DOI: 10.1093/pasj/psac003
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Charged lepton flavor violation associated with heavy quark production in deep inelastic lepton-nucleon scattering via scalar exchange (2022)
  • Author(s): Kiyo Yuichiro、Takeuchi Michihisa、Uesaka Yuichi、Yamanaka Masato
  • Journal Title: Journal of High Energy Physics Volume: 2022 Issue: 4 Pages: 1-37
  • DOI: 10.1007/jhep04(2022)044
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Constraining the primordial curvature perturbation using dark matter substructure (2022)
  • Author(s): Ando Shin’ichiro、Hiroshima Nagisa、Ishiwata Koji
  • Journal Title: Physical Review D Volume: 106 Issue: 10 Pages: 103014-103025
  • DOI: 10.1103/physrevd.106.103014
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Semi-analytical frameworks for subhaloes from the smallest to the largest scale (2022)
  • Author(s): Hiroshima Nagisa、Ando Shin’ichiro、Ishiyama Tomoaki
  • Journal Title: Monthly Notices of the Royal Astronomical Society Volume: 517 Issue: 2 Pages: 2728-2737
  • DOI: 10.1093/mnras/stac2857
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Asymmetric Mediator in Scotogenic Model (2022)
  • Author(s): K. Asai, Y. Sakai, J. Sato, Y. Takanishi, M. Yamanaka
  • Journal Title: Physics Letters B Volume: 836 Pages: 137627-137627
  • DOI: 10.1016/j.physletb.2022.137627
  • Peer Reviewed / Open Access
• [Journal Article] DeWitt boundary condition is consistent in Horava-Lifshitz quantum gravity (2022)
  • Author(s): Matsui Hiroki、Mukohyama Shinji、Naruko Atsushi
  • Journal Title: Physics Letters B Volume: 833 Pages: 137340-137340
  • DOI: 10.1016/j.physletb.2022.137340
  • Peer Reviewed / Open Access
• [Journal Article] High-Energy Extragalactic Neutrino Astrophysics (2022)
  • Author(s): N. Kurahashi, K. Murase, M. Santander
  • Journal Title: ARNPS Volume: 72 Issue: 1 Pages: 365-365
  • DOI: 10.1146/annurev-nucl-011122-061547
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Identifying High-energy Neutrino Transients by Neutrino Multiplet-triggered Follow-ups (2022)
  • Author(s): Shigeru Yoshida, Kohta Murase, Masaomi Tanaka, Nobuhiro Shimizu, Aya Ishihara
  • Journal Title: The Astrophysical Journal Volume: 937 Issue: 2 Pages: 108-108
  • DOI: 10.3847/1538-4357/ac8dfd
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Impacts of Jets and winds from primordial black holes (2022)
  • Author(s): Takhistov Volodymyr、Lu Philip、Murase Kohta、Inoue Yoshiyuki、Gelmini Graciela B
  • Journal Title: Monthly Notices of the Royal Astronomical Society: Letters Volume: 517 Issue: 1 Pages: L1-L4
  • DOI: 10.1093/mnrasl/slac097
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Neutrinos unveil hidden galactic activities (2022)
  • Author(s): K. Murase
  • Journal Title: Science Volume: 378 Issue: 6619 Pages: 474-474
  • DOI: 10.1126/science.ade4190
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Neutrinos from the Brightest Gamma-Ray Burst? (2022)
  • Author(s): Murase Kohta、Mukhopadhyay Mainak、Kheirandish Ali、Kimura Shigeo S.、Fang Ke
  • Journal Title: The Astrophysical Journal Letters Volume: 941 Issue: 1 Pages: L10-L10
  • DOI: 10.3847/2041-8213/aca3ae
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Hidden Hearts of Neutrino Active Galaxies (2022)
  • Author(s): K. Murase
  • Journal Title: Astrophys.J. Volume: 941 Issue: 1 Pages: L17-L17
  • DOI: 10.3847/2041-8213/aca53c
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Ultrahigh-energy cosmic-ray signature in GRB 221009A (2022)
  • Author(s): S. Das, S. Razzaque
  • Journal Title: A&A Volume: 670 Pages: L12-L12
  • DOI: 10.1051/0004-6361/202245377
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Implications of multiwavelength spectrum on cosmic-ray acceleration in blazar TXS 0506+056 (2022)
  • Author(s): S. Das, N. Gupta, S. Razzaque
  • Journal Title: A&A Volume: 668 Pages: A146-A146
  • DOI: 10.1051/0004-6361/202244653
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Axion cloud decay due to the axion-photon conversion with background magnetic fields (2021)
  • Author(s): Yoo Chul-Moon、Naruko Atsushi、Sakurai Yusuke、Takahashi Keitaro、Takamori Yohsuke、Yamauchi Daisuke
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 74 Issue: 1 Pages: 64-72
  • DOI: 10.1093/pasj/psab110
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Multimessenger Implications of Sub-PeV Diffuse Galactic Gamma-Ray Emission (2021)
  • Author(s): K. Fang, K. Murase
  • Journal Title: Astrophys.J. Volume: 919 Issue: 2 Pages: 93-93
  • DOI: 10.3847/1538-4357/ac11f0
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] High-energy Neutrinos from Magnetized Coronae of Active Galactic Nuclei and Prospects for Identification of Seyfert Galaxies and Quasars in Neutrino Telescopes (2021)
  • Author(s): Kheirandish Ali、Murase Kohta、Kimura Shigeo S.
  • Journal Title: The Astrophysical Journal Volume: 922 Issue: 1 Pages: 45-45
  • DOI: 10.3847/1538-4357/ac1c77
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Particle Reacceleration by Turbulence and Radio Constraints on Multi-Messenger High-Energy Emission from the Coma Cluster (2021)
  • Author(s): K. Nishiwaki, K. Asano, K. Murase
  • Journal Title: Astrophys.J. Volume: 922 Issue: 2 Pages: 190-190
  • DOI: 10.3847/1538-4357/ac1cdb
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Soft gamma rays from low accreting supermassive black holes and connection to energetic neutrinos (2021)
  • Author(s): Kimura Shigeo S.、Murase Kohta、Meszaros Peter
  • Journal Title: Nature Communications Volume: 12 Issue: 1 Pages: 5615-5615
  • DOI: 10.1038/s41467-021-25111-7
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Energetics of ultrahigh-energy cosmic-ray nuclei_ (2021)
  • Author(s): Y. Jiang, B.T. Zhang, K. Murase
  • Journal Title: Phys.Rev.D Volume: 104 Issue: 4 Pages: 043017-043017
  • DOI: 10.1103/physrevd.104.043017
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Multi-messenger emission from the parsec-scale jet of the flat-spectrum radio quasar coincident with high-energy neutrino IceCube-190730A (2021)
  • Author(s): F. Oikonomou et al.
  • Journal Title: JCAP Volume: 10 Issue: 10 Pages: 82-82
  • DOI: 10.1088/1475-7516/2021/10/082
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] External Inverse-Compton Emission from Low-luminosity Gamma-Ray Bursts: Application to GRB 190829A (2021)
  • Author(s): B.T. Zhang et al.
  • Journal Title: Astrophys.J. Volume: 920 Issue: 1 Pages: 55-55
  • DOI: 10.3847/1538-4357/ac0cfc
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] External Inverse-Compton Emission Associated with Extended and Plateau Emission of Short Gamma-Ray Bursts: Application to GRB 160821B (2021)
  • Author(s): Zhang B. Theodore、Murase Kohta、Yuan Chengchao、Kimura Shigeo S.、Meszaros Peter
  • Journal Title: The Astrophysical Journal Volume: 908 Issue: 2 Pages: L36-L36
  • DOI: 10.3847/2041-8213/abe0b0
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Off-axis jet scenario for early afterglow emission of low-luminosity gamma-ray burst GRB 190829A (2021)
  • Author(s): Sato Yuri、Obayashi Kaori、Yamazaki Ryo、Murase Kohta、Ohira Yutaka
  • Journal Title: Monthly Notices of the Royal Astronomical Society Volume: 504 Issue: 4 Pages: 5647-5655
  • DOI: 10.1093/mnras/stab1273
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] ALMA and NOEMA constraints on synchrotron nebular emission from embryonic superluminous supernova remnants and radio?gamma-ray connection (2021)
  • Author(s): Murase Kohta、Omand Conor M B、Coppejans Deanne L、Nagai Hiroshi、Bower Geoffrey C、Chornock Ryan、Fox Derek B、Kashiyama Kazumi、Law Casey、Margutti Raffaella、M?sz?ros Peter
  • Journal Title: Monthly Notices of the Royal Astronomical Society Volume: 508 Issue: 1 Pages: 44-51
  • DOI: 10.1093/mnras/stab2506
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Post-merger Jets from Supermassive Black Hole Coalescences as Electromagnetic Counterparts of Gravitational Wave Emission (2021)
  • Author(s): Yuan Chengchao、Murase Kohta、Zhang B. Theodore、Kimura Shigeo S.、Meszaros Peter
  • Journal Title: The Astrophysical Journal Letters Volume: 911 Issue: 1 Pages: L15-L15
  • DOI: 10.3847/2041-8213/abee24
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Outflow Bubbles from Compact Binary Mergers Embedded in Active Galactic Nuclei: Cavity Formation and the Impact on Electromagnetic Counterparts (2021)
  • Author(s): Kimura Shigeo S.、Murase Kohta、Bartos Imre
  • Journal Title: The Astrophysical Journal Volume: 916 Issue: 2 Pages: 111-111
  • DOI: 10.3847/1538-4357/ac0535
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Latest results of ultra-high-energy cosmic ray measurements with prototypes of the Fluorescence detector Array of Single-pixel Telescopes (FAST) (2021)
  • Author(s): T. Fujii et al.
  • Journal Title: PoS (ICRC2021) Volume: 402 Pages: 402-402
  • DOI: 10.22323/1.395.0402
  • Peer Reviewed
• [Journal Article] Impacts of new small-scale N-body simulations on dark matter annihilations constrained from cosmological 21-cm line observations (2021)
  • Author(s): Hiroshima Nagisa、Kohri Kazunori、Sekiguchi Toyokazu、Takahashi Ryuichi
  • Journal Title: Physical Review D Volume: 104 Issue: 8 Pages: 1-7
  • DOI: 10.1103/physrevd.104.083547
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] On Lorentz-invariant bispin-2 theories (2021)
  • Author(s): Kimura Rampei、Naruko Atsushi、Yamauchi Daisuke
  • Journal Title: Physical Review D Volume: 104 Issue: 4 Pages: 1-20
  • DOI: 10.1103/physrevd.104.044021
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Unified approach to secondary effects on the CMB B-mode polarization (2021)
  • Author(s): Namikawa Toshiya、Naruko Atsushi、Saito Ryo、Taruya Atsushi、Yamauchi Daisuke
  • Journal Title: Journal of Cosmology and Astroparticle Physics Volume: 2021 Issue: 10 Pages: 029-029
  • DOI: 10.1088/1475-7516/2021/10/029
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Backreaction of mass and angular momentum accretion on black holes: General formulation of metric perturbations and application to the Blandford-Znajek process (2021)
  • Author(s): Kimura Masashi、Harada Tomohiro、Naruko Atsushi、Toma Kenji
  • Journal Title: Progress of Theoretical and Experimental Physics Volume: 2021 Issue: 9 Pages: 1-26
  • DOI: 10.1093/ptep/ptab101
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Sensitivity of the Cherenkov Telescope Array for probing cosmology and fundamental physics with gamma-ray propagation (2021)
  • Author(s): H. Abdalla et al
  • Journal Title: Journal of Cosmology and Astroparticle Physics Volume: 2021 Issue: 02 Pages: 048-048
  • DOI: 10.1088/1475-7516/2021/02/048
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Probing <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>μ</mml:mi><mml:mi>e</mml:mi><mml:mi>γ</mml:mi><mml:mi>γ</mml:mi></mml:math> contact interactions with <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>μ</mml:mi><mml:mo stretchy="false">→</mml:mo><mml:mi>e</mml:mi></mml:math> conversion (2020)
  • Author(s): Davidson S.、Kuno Y.、Uesaka Y.、Yamanaka M.
  • Journal Title: Physical Review D Volume: 102 Issue: 11 Pages: 115043-115043
  • DOI: 10.1103/physrevd.102.115043
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Presentation] High-Energy Neutrino Emission from the Cores of Active Galactic Nuclei (2023)
  • Author(s): Kohta Murase
  • Organizer: NCfA Symposium
  • Int'l Joint Research / Invited
• [Presentation] High-Energy Astrophysical Neutrinos (2023)
  • Author(s): Kohta Murase
  • Organizer: Neutrino Platform Workshop
  • Int'l Joint Research / Invited
• [Presentation] Implications from DM substructures: from low z to high z (2022)
  • Author(s): Nagisa Hiroshima
  • Organizer: Upcoming CMB observations and Cosmology
• [Presentation] 21cm線観測による暗黒物質探査における非線形構造形成の効果 (2022)
  • Author(s): 廣島渚、郡和範、関口豊和、高橋龍一
  • Organizer: 第77回日本物理学会年次大会
• [Presentation] EPS approach for multiscale DM halo (2022)
  • Author(s): Nagisa Hiroshima
  • Organizer: 2nd workshop: Multimessenger Study of Heavy Dark Matter
  • Int'l Joint Research
• [Presentation] Lepton Flavor Violation at J-PARC (2022)
  • Author(s): Masato Yamanaka
  • Organizer: Second International Workshop on the Extension Project for the J-PARC Hadron Experimental Facility
  • Invited
• [Presentation] Search for lepton flavor violation at the Subaru Telescope (2022)
  • Author(s): Masato Yamanaka
  • Organizer: 2nd workshop: Multimessenger Study of Heavy Dark Matter
  • Invited
• [Presentation] Spatial gradient expansion approach for generic scalar-tensor theories_ (2022)
  • Author(s): Atsushi Naruko
  • Organizer: International Workshop "Dawn of Gravitational-wave Cosmology and Theory of Gravity"
  • Invited
• [Presentation] High-Energy Neutrinos from Hidden Hearts of Active Galactic Nuclei (2022)
  • Author(s): Kohta Murase
  • Organizer: MARLAM 2022
  • Int'l Joint Research
• [Presentation] Promising Sources of High-Energy Neutrinos and Some Implication (2022)
  • Author(s): Kohta Murase
  • Organizer: KITP 2022 Workshop on Neutrinos as a Portal to New Physics and. Astrophysics
  • Int'l Joint Research / Invited
• [Presentation] Multimessenger Study of Heavy Dark Matter (2022)
  • Author(s): Kohta Murase
  • Organizer: Symposium “What is Dark Matter?”
  • Int'l Joint Research / Invited
• [Presentation] High-Energy Neutrinos from Active Galactic Nuclei (2022)
  • Author(s): Kohta Murase
  • Organizer: Town Hall KM3Net Meeting 2022
  • Int'l Joint Research / Invited
• [Presentation] High-Energy Multimessenger Transients (2022)
  • Author(s): Kohta Murase
  • Organizer: Neutrinos in the Multi-Messenger Era
  • Int'l Joint Research / Invited
• [Presentation] WIMP annihilation signals in dwarf spheroidal galaxies as subhalos of the Milky Way (2021)
  • Author(s): Nagisa Hiroshima
  • Organizer: Kashiwa Dark Matter Symposium 2021
  • Int'l Joint Research
• [Presentation] Impacts of new small-scale N-body simulations on dark matter annihilations constrained from cosmological 21cm line observations (2021)
  • Author(s): Nagisa Hiroshima
  • Organizer: 大阪市立大学素粒子現象論研究会
• [Presentation] VHDM search & DM halo (2021)
  • Author(s): Nagisa Hiroshima
  • Organizer: 1st workshop: Multimessenger Study of Heavy Dark Matter
  • Int'l Joint Research / Invited
• [Presentation] Implications from the structure formation models of DM halo to gamma-ray search of DM (2021)
  • Author(s): Nagisa Hiroshima
  • Organizer: 北陸信越地区素粒子論グループ研究会
• [Presentation] tructure Formation Models Weaken Limits on WIMP Dark Matter from Dwarf Spheroidal Galaxies (2021)
  • Author(s): 安藤真一郎、Alex Geringer-Sameth, 廣島渚、Sebastian Hoof, Roberto Trotta, Matthew G. Walker
  • Organizer: 第76回日本物理学会年次大会
• [Presentation] Dark matter search in extended dwarf spheroidal galaxies with very-high-energy gamma-ray observations (2021)
  • Author(s): Nagisa Hiroshima
  • Organizer: 第29回新ヒッグス研究会
  • Invited
• [Presentation] Theories for Muon to Electron Conversion (2021)
  • Author(s): Masato Yamanaka
  • Organizer: 33rd COMET Collaboration Meeting & Integration Workshop
  • Invited
• [Presentation] Very Heavy Dark Matter production (2021)
  • Author(s): Masato Yamanaka
  • Organizer: 1st workshop: Multimessenger Study of Heavy Dark Matter
  • Invited
• [Presentation] Overview of Lepton Flavor Violation (2021)
  • Author(s): Masato Yamanaka
  • Organizer: 3rd Toyama International Symposium on "Physics at the Cosmic Frontier"
  • Invited
• [Presentation] Probing $\mu e \gamma \gamma$ contact interactions with $\mu \to e$ conversion (2021)
  • Author(s): Masato Yamanaka
  • Organizer: KEK Theory Meeting on Particle Physics Phenomenology (KEK-PH2021)
• [Presentation] Detailed analysis of lepton flavor violating deep-inelastic scattering by (pseudo-)scalar mediator (2021)
  • Author(s): Masato Yamanaka
  • Organizer: Higgs as a Probe of New Physics (HPNP2021)
• [Presentation] VHDM search & gravity sector (2021)
  • Author(s): Atsushi Naruko
  • Organizer: 1st workshop: Multimessenger Study of Heavy Dark Matter
  • Invited
• [Presentation] 一般的なスカラー・テンソル理論における勾配展開法 (2021)
  • Author(s): Atsushi Naruko
  • Organizer: 物理学会
• [Presentation] Axion Cloud Decay due to the Axion-photon Conversion with Background Magnetic Fields (2021)
  • Author(s): Atsushi Naruko
  • Organizer: 8th Korea-Japan workshop on Dark Energy
  • Int'l Joint Research
• [Presentation] Axion Cloud Decay due to the Axion-photon Conversion with Background Magnetic Fields (2021)
  • Author(s): Atsushi Naruko
  • Organizer: 第10回観測的宇宙論ワークショップ
• [Presentation] Axion Cloud Decay due to the Axion-photon Conversion with Background Magnetic Fields_ (2021)
  • Author(s): Atsushi Naruko
  • Organizer: The 30th Workshop on General Relativity and Gravitation in Japan
  • Int'l Joint Research
• [Presentation] Ultrahigh-Energy Cosmic-Ray Sources and Acceleration (2021)
  • Author(s): Kohta Murase
  • Organizer: GCOS Workshop
  • Int'l Joint Research / Invited
• [Presentation] High-Energy Multimessenger Particle Astrophysics (2021)
  • Author(s): Kohta Murase
  • Organizer: Astro Dark 2021
  • Int'l Joint Research / Invited
• [Book] Springer (2022)
  • Author(s): Taku Onishi et al.
  • Total Pages: 505
  • Publisher: Quantum Science: The Frontier of Physics and Chemistry
  • ISBN: 9811944202
• [Book] 数理の窓から世界を読みとくー素数・AI・生物・宇宙をつなぐー (2021)
  • Author(s): 初田哲男、柴藤亮介、宮崎弘安、田中章詞、入谷亮介、廣島渚
  • Total Pages: 212
  • Publisher: 岩波書店
• [Funded Workshop] Multimessenger Study of Heavy Dark Matter Workshop 2022 (2022)
• [Funded Workshop] Multimessenger Study of Heavy Dark Matter Workshop 2021 (2021)