2024 CAU-PNU Beyond the Standard Model Workshop

Session

Dark Matter

19 Feb 2024, 16:00

Centennial 310-B502 (Chung-Ang University)

7. Dark sector particle searches with NaI(Tl) crystals

Prof. Hyunsu Lee (IBS CUP)

19/02/2024, 16:00

8. Probing sterile neutirno-tau neutrino mixing at SHiP experiment

Ki-Young Choi (Sungkyunkwan University (KR))

19/02/2024, 16:40

9. Probing the Migdal effect in the precise angular distribution

Prof. Bin Zhu (Yantai University)

19/02/2024, 17:10

20. Current status of dark matter and cosmology

Nicolás Bernal (New York University Abu Dhabi)

21/02/2024, 09:30

21. The baryon asymmetry from a scale hierarchy

Chang Sub Shin (Institute for Basic Science)

21/02/2024, 11:00

22. BBN constraint on majoron

Dr Tae Hyun Jung (Institute for Basic Science)

21/02/2024, 11:30

In this talk, I will introduce the Big Bang nucleosynthesis (BBN) constraint on the majoron-like particle in the mass range between 1MeV to 10GeV which dominantly decays into the standard model neutrinos. For a lifetime shorter than 1 sec, the majoron heats up the background plasma by injecting neutrinos and changes the relation of photon temperature and background neutrino temperature,...

23. Halo-independent bounds of WIMP-nucleon couplings from direct detection and neutrino observations in elastic and inelastic scatterings

Sunghyun Kang (Sogang University)

21/02/2024, 12:00

I will discuss the halo-independent bounds on the WIMP-nucleon couplings of the non-relativistic effective Hamiltonian that drives the scattering process off nuclei of a WIMP of spin 1/2 combining direct detection experiments and neutrino telescopes data in order to cover the full WIMP incoming speed range.
In the elastic interactions, for most of the couplings the degree of relaxation of...

39. Lessons from the bygone anomalies : Personal viewpoints

Prof. Pyungwon Ko (KIAS (Korea Institute for Advanced Study))

23/02/2024, 11:00

40. Hunting for Hypercharge Anapole Dark Matter

Jaehoon Jeong (KIAS)

23/02/2024, 11:40

We conduct a combined analysis to investigate dark matter (DM) with hypercharge anapole
moments, focusing on scenarios where Majorana DM particles with spin 1/2 or 1 interact
exclusively with Standard Model particles through U(1)Y hypercharge anapole terms. For
completeness, we construct general, effective, and hypercharge gauge-invariant three-point
vertices. These enable the generation...

45. Light thermal dark matter via type-I seesaw portal

Satyabrata Mahapatra (Sungkyungkwan University)

23/02/2024, 15:40

We propose a minimal scenario for light thermal dark matter (DM) in sub-GeV to GeV ballpark by incorporating a scalar singlet DM in a type-I seesaw scenario extended by an additional Higgs doublet ϕ2. The latter permits efficient annihilation of light scalar DM into leptonic final states including right-handed neutrinos (RHN). While DM annihilation into charged lepton final states is kept...

46. WIMPs in Dilatonic Einstein Gauss-Bonnet Cosmology

Arpan Kar (Center for Quantum Spacetime (CQUeST), Sogang University)

23/02/2024, 16:00

In this talk I will discuss how the Weakly Interacting Massive Particle (WIMP) thermal decoupling scenario can be used to probe Cosmologies in dilatonic Einstein Gauss-Bonnet (dEGB) gravity, where the Gauss–Bonnet term is non–minimally coupled to a scalar field with vanishing potential. Constraints on the model parameters can be obtained when the ensuing modified cosmological scenario drives...

44. Forbidden Conformal Dark Matter

Seung J. Lee (Korea University)

In recent years, there has been growing interest and progress in high-frequency gravitational waves (HFGWs) within both theoretical and experimental realms. Particularly noteworthy is the emergence of oscillating magnetic fields induced by both axions and GWs in the presence of electromagnetic fields—an intriguing intersection that holds the potential for a detectable fingerprint. This...