The 3rd Toyama International Symposium on "Physics at the Cosmic Frontier" (PCF2021)

A238 and Zoom (Faculty of Science, University of Toyama)

A238 and Zoom

Faculty of Science, University of Toyama

3190 Gofuku, Toyama 930-8555, Japan
Mitsuru Kakizaki (University of Toyama)
  • Atsushi Maeta
  • Eun-Kyung Park
  • Hiroaki Sugiyama
  • Hiroyuki Ishida
  • Kazuhiro Yamamoto
  • Kei Yagyu
  • Kirolosse GIRGIS
  • Masahito Ogata
  • Masato Yamanaka
  • Mitsuru Kakizaki
  • Nagisa Hiroshima
  • Naoki Inoue
  • Naoki Sato
  • Nobata Masahiro
  • Shin Suzuki
  • Shuhei Ozawa
  • Tohru Hada
  • Toshihiro Fujii
  • Yasuhiro Nariyuki
  • Yoshihiro Kajimura
  • Yoshiki Moriwaki
  • Yoshiyuki Iwazaki
  • yumeng fan
  • 太暉 加藤
    • 2:45 PM 4:15 PM
      Overview of Lepton Flavor Violation: Masato Yamanaka

      The standard model of particle physics is far from accounting
      for mysteries about our universe, --e.g., what is dark matter and dark
      energy?-- and it must be extended to a more fundamental description
      of nature. Such new physics models allow Lepton Flavor Violating (LFV)
      reactions (e.g., muon decays into an electron and a photon) which are
      exactly forbidden in the standard model. Hence search for LFV is a clue
      to the new physics, which unveil the flavor structure and the symmetries
      behind it. In this talk, the general features of the LFV processes are
      introductory reviewed, and theoretical and experimental progresses are

    • 2:45 PM 4:15 PM
      New horizons in particle physics explored by Higgs physics: Kei Yagyu

      It has been nine years since the Higgs boson was discovered at LHC.
      However, the essence of Higgs physics, i.e., the origin of the spontaneous breaking of electroweak symmetry, has not yet been clarified.
      On the other hand, a new physics model beyond the Standard Model (SM) must exist, due to phenomena which cannot be explained in the SM
      such as the baryon number asymmetry of the Universe.
      In this talk, I will first give a brief review of the Higgs physics,
      and then discuss the possibility that the determination of the structure of the Higgs sector
      is a "key" to explore new physics beyond the SM by introducing recent my works.

    • 2:45 PM 4:15 PM
      Unraveling mysteries of the most energetic particle in the universe: Toshihiro Fujii

      Clarifying origins and acceleration mechanisms of the most energetic particles in the universe has been a decades-long endeavor, being one of the most intriguing mysteries in the interdisciplinary research among astroparticle physics, high-energy physics and nuclear physics. Since such ultra-high-energy cosmic rays (UHECRs) are deflected less strongly by the galactic and inter-galactic magnetic fields, due to their enormous kinetic energies, their arrival directions are ostensively correlated with their origins. A next-generation astronomy using UHECRs is hence a potentially viable probe to unravel mysteries of extremely energetic phenomena in the nearby universe. In this talk, I will highlight the introductory cosmic-ray physics, detection techniques and latest results of the two giant observatories, dubbed Telescope Array experiment and Pierre Auger Observatory including their on-going upgrades and address scientific objectives and requirements for future UHECR observatories.

    • 2:30 PM 4:30 PM
      Performance evaluation of magnetic pla shield for protecting the cosmic radiation and obtaining the thrust: Performance evaluation of magnetic plasma shield for protecting the cosmic radiation and obtaining the thrust
    • 2:30 PM 4:30 PM
      Hamiltonian mechanics, Nambu mechanics, and generalized phase space
    • 2:30 PM 4:30 PM
      The South Atlantic Anomaly: Variations of its Magnetic Field, Proton Flux and Radiation Environment due to Space Weather Conditions
    • 2:45 PM 4:15 PM
      An overview of space gravitational wave observations