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12th Workshop on Flavor Symmetries and Consequences in Accelerators and Cosmology (FLASY 2026)

17–22 Aug 2026
Commodore Hotel
Asia/Seoul timezone

Session

Cosmology 1

20 Aug 2026, 09:00
Commodore Hotel

Commodore Hotel

Gyeongju

Presentation materials

There are no materials yet.

  1. 17. Domain walls from discrete flavour symmetries
    Ye-Ling Zhou (Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences)
    20/08/2026, 09:00
    Invited plenary talks: 25'+5'

    Discrete flavour symmetries are widely used to address flavour puzzles in quark and lepton sectors. A key cosmological consequence for spontaneous breaking of these symmetries are the formation of domain walls (DWs), 2D topological defects at the cosmic scale. DWs, if they are generated in the radiation era, should collapse before BBN in order to avoid overclosing the Universe. The collapsing...

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  2. 52. Why is Lambda the zero?
    MASAHIDE YAMAGUCHI (Institute for Basic Science)
    20/08/2026, 09:30
    Invited plenary talks: 25'+5'

    I will discuss why Lambda is the zero.

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  3. 53. Dark age 21cm signal and low reheating temperature
    Prof. Ki-Young Choi (Sungkyunkwan University)
    20/08/2026, 10:00
    Invited plenary talks: 25'+5'

    We introduce an idea to probe the early Universe scenario with low reheating temperature using the observation of cosmological 21cm from dark age in the Universe.

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