2026 CAU-IBS Beyond the Standard Model Workshop

Session

Neutrino / Dark matter

Jun 8, 2026, 4:00 PM

Chung-Ang University

13. Overview of matter creation double beta decay experiments

Prof. Yeongduk Kim (Institute for Basic Science (IBS), South Korea)

6/8/26, 4:00 PM

I would like to review future double beta decay experiments in terms of background, exposure, schedule, and sensitivities.

14. Semi-visible Jets as a Hidden-Sector Signature at the LHC

Chang-Seong Moon (Kyungpook National University (KR))

6/8/26, 4:30 PM

Hidden-sector models provide a well-motivated framework for physics beyond the Standard Model, offering potential explanations for dark matter and other unresolved questions in particle physics. In a broad class of these models, particles produced at the Large Hadron Collider (LHC) may undergo complex showering and hadronization processes within a hidden strongly interacting sector. The...

16. Long-Lived Heavy Neutrinos from Neutrinophilic Charged Higgs at the HL-LHC

Prasenjit Sanyal (Asia Pacific Center for Theoretical Physics)

6/8/26, 5:00 PM

In this talk, I will discuss an alternative production mechanism for long-lived heavy neutrinos within the framework of neutrinophilic Higgs doublet models, where an additional Higgs doublet couples exclusively to the Standard Model (SM) lepton doublets and right-handed neutrinos (RHNs). This structure allows the vacuum expectation value (VEV) of the extra Higgs doublet to be much smaller than...

42. Search for Beyond Standard Model Physics with Reactor-Based CEvNS Search in NEON experiment

Gyunho Yu (Institute for Basic Science)

6/11/26, 3:30 PM

The detection of coherent elastic neutrino–nucleus scattering (CEvNS) is one of the primary research goals in contemporary neutrino experiments. Its observation provides critical insights not only into the Standard Model but also into physics beyond it, such as non-standard neutrino interactions, and establishes the so-called neutrino floor relevant for dark matter searches. Consequently,...

43. Charged lepton flavor violation with light dark matter and muonium invisible decay

Mr Sahabub Jahedi (Indian Institute of Technology, Guwahati)

6/11/26, 4:00 PM

1

In this talk, I will present the prospect of lepton-flavor-violating (LFV) interactions of dark matter (DM) within an effective field theory framework, going beyond the conventional flavor-conserving paradigm. Considering scalar, fermion, and vector DM candidates, I study the three-body decays of charged leptons into a lighter lepton and a pair of DM particles. The invariant-mass distributions...

44. $A_4$ symmetry combined with a type-II seesaw mechanism for neutrino mass generation

Ranjeet Kumar (Seoul National University of Science and Technology)

6/11/26, 4:15 PM

In this talk, I will discuss a flavour model based on an $A_4$ symmetry combined with a type-II seesaw mechanism for neutrino mass generation. The resulting neutrino mass matrix obeys a sum rule that, together with the measured mass-squared differences, fully determines the absolute neutrino mass spectrum. The constrained flavour structure
yields correlated predictions for lepton mixing...

15. Exploring Light Scalars in Type-I 2HDM with Boosted Double-$b$ Tagging at the LHC

CHANDRIMA SEN

In this talk, I will discuss the prospects of probing a light scalar state in the Type-I Two-Higgs Doublet Model (2HDM) at the LHC. In this framework, one of the additional scalar states can be as light as $\lesssim 100$ GeV while remaining consistent with current collider and flavour constraints, yet it can evade conventional search strategies due to its suppressed couplings to the SM Higgs...