The 4th International BSM Workshop: Building for Tomorrow

Session

Plenary talks (3)

27 Aug 2025, 09:00

Tsung-Dao Lee Institute/N6F-N600 - Lecture Room (Tsung-Dao Lee Institute)

107. Asymptotic GUT in extra dimension

Ye-Ling Zhou (HIAS-UCAS)

27/08/2025, 09:00

Asymptotic unification, distinct from the conventional concept of unification, suggests that couplings unify at a non-trivial ultraviolet (UV) fixed point. Theory with an interacting UV fixed point is normally referred to as asymptotic safety to address the famous UV Landau pole problem. Alternative to a usual grand unified theory (GUT), an asymptotic GUT gradually unifies gauge couplings in...

90. Scattering Entanglement Entropy and Its Implications for Electroweak Phase Transitions

Masanori Tanaka (Peking University)

27/08/2025, 09:30

In this presentation, we discuss a relation between the dynamics of the ElectroWeak Phase Transition (EWPT) and the entanglement entropy defined in scattering processes. As a representative scenario, we focus on the SM extension with N singlet scalar fields with the global O(N) symmetry. We also discuss a possibility that the entanglement entropy may be used as an order parameter for the EWPT....

85. Applications of non-invertible selection rules to flavor physics

Hajime Otsuka (Kyushu University)

27/08/2025, 10:00

Selection rules are fundamental principles in quantum systems and quantum field theory, determining whether certain couplings are allowed or forbidden. Conventionally, selection rules are associated with conservation laws originating from a certain group-like symmetry. However, it has been found that non-invertible selection rules also appear in quantum field theory and string theory. In this...