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

Session

Contributed 5

21 Aug 2026, 14:10

Commodore Hotel

39. Status of GLIMPSE

Jong-Chul Park (Chungnam National University)

21/08/2026, 14:10

Parallel talks: 17'+3'

We propose a novel detection strategy for super-light dark matter (DM), $m_{DM}$ ~ O(keV), using a detector based on Graphene Josephson Junctions (GJJ). By intimately integrating the π-bond electrons of graphene as the target material into a Josephson junction, we create a sensor capable of detecting energy deposits as small as O(meV). We evaluate the scattering rates between DM and free...

12. Taming lepton portal dark matter by a non-invertible selection rule

Junichiro Kawamura (Kumamoto HS University)

21/08/2026, 14:30

Parallel talks: 17'+3'

In this talk, I will show that a non-invertible selection rule can tame flavor violation induced by the portal Yukawa couplings of dark matter. In ordinary Abelian discrete symmetries without additional spurions, flavor-dependent charge assignments that forbid flavor-violating portal couplings do not allow a realistic PMNS matrix. This tension between the absence of flavor violation in the...

16. Electromagnetic signatures of axion dark matter halos around primordial black holes

Junghoon Joh (SungKyunKwan University)

21/08/2026, 14:50

Parallel talks: 17'+3'

Dark matter (DM) may accumulate in the gravitational potential of compact astrophysical objects, forming dense bound halos. In particular, if primordial black holes (PBHs) are present, their gravitational field can capture surrounding DM particles and produce a steep density spike in the inner halo region. The resulting compact DM structure provides an environment where microscopic particle...

34. Mixed wave dark matter and implications in neutrino physics

Yechan Kim (KAIST)

21/08/2026, 15:10

Parallel talks: 17'+3'

Ultralight wave dark matter exhibits oscillations that can modulate particle physics observables. The mixing of two wave dark matter fields can alter this simple oscillation, generating nontrivial temporal structures beyond a monochromatic signal. We discuss two scenarios: potential oscillation with periodic symmetry breaking and restoration, and wave-envelope dark matter with a slow beating...

14. Multimessenger Probes of Heavy Neutrinos

SANJOY MANDAL (Korea Institute for Advanced Study, Seoul, South Korea)

21/08/2026, 15:30

Parallel talks: 17'+3'

Heavy neutrinos provide one of the most compelling windows into physics beyond the Standard Model, offering a common framework for neutrino mass generation, the matter-antimatter asymmetry of the Universe, and potentially dark matter. Their rich phenomenology spans collider, intensity-frontier, and cosmological experiments, making them ideal targets for a multimessenger search strategy.

In...