[English, Japanese]

Koichi Hamaguchi

HEP Theory Group, Department of Physics, University of Tokyo

• seminars and journal clubs
• members
• Postdoc position

publications ( INSPIRE, arXiv ),        CV

Lectures

New Physics Forum

Research Interest

Physics beyond the Standard Model of Particle Physics, its application to cosmology (baryogenesis, Dark Matter and its signatures, Inflation), Supersymmetric Models.

Contact

• For those who are interested in doing research with Koichi Hamaguchi as graduate students

Recent Papers (2018-):

• Leptogenesis in the minimal gauged U(1)_Lμ-Lτ model and the sign of the cosmological baryon asymmetry
  K. Asai, K. Hamaguchi, N. Nagata, S. Tseng,     arXiv: 2005.01039   

• Muon g-2 vs LHC Run 2 in Supersymmetric Models
  M. Endo, K. Hamaguchi, S. Iwamoto, T. Kitahara,     arXiv: 2001.11025   

• Dark Matter Heating vs. Rotochemical Heating in Old Neutron Stars
  K. Hamaguchi, N. Nagata, K. Yanagi,     arXiv: 1905.02991   

• Cooling Theory Faced with Old Warm Neutron Stars: Role of Non-Equilibrium Processes with Proton and Neutron Gaps
  K. Yanagi, N. Nagata, K. Hamaguchi,     arXiv: 1904.04667   

• Minimal Gauged U(1)_Lα-Lβ Models Driven into a Corner
  K. Asai, K. Hamaguchi, N. Nagata, S. Tseng, K. Tsumura,     arXiv: 1811.07571   

• Moduli Oscillation Induced by Reheating
  D. Hagihara, K. Hamaguchi, K. Nakayama,     arXiv: 1811.05002   

• The swampland conjecture and the Higgs expectation value
  K. Hamaguchi, M. Ibe, T. Moroi,     arXiv: 1810.02095   

• A Limit on Axion from the Cooling Neutron Star in Cassiopeia A
  K. Hamaguchi, N. Nagata, K. Yanagi, J. Zheng,     arXiv: 1806.07151   

• Supersymmetric Flaxion
  Y. Ema, D. Hagihara, K. Hamaguchi, T. Moroi, K. Nakayama,     arXiv: 1802.07739   

• All papers:  INSPIRE, arXiv

Workshops/Conferences

• 2020
  • Unraveling the History of the Universe 2020 (6/2-)
  • New Directions in Cosmology 2020 (3/24-)　(Cancelled)
• 2019
  • IBS-PNU Joint Workshop 2019 (12/4-)
  • underground 2019 (8/24-)
  • SI 2019 (8/19-)
  • Axions in the Lab and in the Cosmos (7/15-)
  • Darkon2019 (7/5-)
  • Planck 2019 (6/3-)
  • Revealing the history of the universe 2019 (3/7-)
  • YuCHE 2019 (2/25-)
• 2018
  • LDW 2018 (12/17-)
  • KEK-PH 2018 Winter (12/4-)
  • DBD2018/ Hawaii2018 (10/21-)
  • ILC Summer Camp 2018 (9/10-)
  • PACIFIC 2018.9 (9/1-)
  • Moriond 2018 (3/10-)
  • PACIFIC 2018 (2/13-)
• 2017
  • Dark World (10/31-)
  • LLP workshop (9/22)
  • SI 2017 (8/25-)
  • YITP-PPP 2017 (7/31-)
  • underground 2017 Okayama (5/21-)
  • KEK-PH 2017 (2/14-)
  • Physics in LHC and the Early Universe (1/9-)


• before 2017