| Speaker: |
Masahiro Kawasaki (Kavli IPMU) |
| Title: |
Q-ball Cosmology |
| Date (JST): |
Wed, Jun 10, 2026, 15:30 - 17:00 |
| Place: |
Lecture Hall |
| Abstract: |
A Q-ball is a localized scalar-field configuration appearing in theories with a global U(1) symmetry. Q-balls carry conserved charges such as baryon or lepton number. They arise naturally in supersymmetric theories, where many scalar fields (the scalar partners of quarks and leptons) are present. Q-balls can be copiously produced in the early universe through the Affleck–Dine mechanism. In this talk, I will explain how Q-ball solutions arise and how Q-balls are formed in the early universe. I will also discuss their cosmological implications, including dark matter and large lepton asymmetry.
|
| Remarks: |
Rescheduled from June 3 to June 10 due to the approaching typhoon. |
