• KAGRA
• Subgroups
• PEM
• Meeting
• 251107
• Agenda

Weekly PEM meeting

• 2025/11/07(Fri) 17:00-
• Regular meeting

• Zoom2 : https://zoom.us/j/6676627462

General announcement

• O4c url

  • Now commissioning break, Re-start 4th June 11th June end 7th Oct. 18th Nov.

Meeting and Conference issue

• 2025 ENIGMA Collaboration Workshop on Astrophysics and Geophysics

  • url

  • 9th Nov. - 13th Nov.
  • Yokozawa and Washimi-san will join
• KAGRA F2F meeting
  • 12/15-17 @ South Korea

  • url

• KIW13
  • 12/18,19(+20)

  • url

• Other meetings url

If you have some presentations about PEM related, please contact to me.

Business travel

• To Kamioka
  • Kaku and Abe (11/16-21)
• From Kamioka
  • Yokozawa, Washimi (South Korea, 11/8-11/14)

Jurnal paper issue

Details are here!

• Non-linear ICA paper
  • SEO agreed
  • arXiv submission
  • Submission to PTEP
• Schumann Resonance paper
  • Long term observation, seasonal variance
  • Amplified inside the mine
  • Others
• O4(a+c) PEM paper
  • Start to investigate the topics
• Microseism with machine learning
• 1 Hz seismic motion paper
  • Sunil-san's result?

General issue

• Commissioning
  • IFO
    • PRFPMI DC readout succeeded
      • Lock duration became longer, treatment of the suspension kick.

Progress report

• Nishizawa, Taruya, Himemoto
  • Water Newtonian noise
  • Schumann Resonance
• Kaku
  • Magnetic field analysis
• Abe
  • Parameter estimation of the schumann resonance
• Murofushi
  • Earthquake and GIF analysis
• Obara
  • Earthquake and suspension
• Ohashi
  • Microseismic noise with machine learning
• Kume, Ueno
  • Noise subtraction
• Yokozawa
  • Lightening
• Washimi
  • Study in KEK
  • Wind study
  • Newtonian noise

Place for memo

• Line noise list in O3a public data

• Summary page for KAGRA O3 vector dark matter