Speaker
PUJA DAS
Description
We discuss the Domain-Wall Standard Model formulated in five-dimensional spacetime. In this framework, all Standard Model (SM) particles are localized within a finite region (domain) along a non-compact extra spatial dimension. This scenario predicts the existence of a Nambu-Goldstone (NG) boson associated with the spontaneous violation of translational invariance in the extra dimension. The NG boson couples to the SM fermions (zero modes) as well as their Kaluza-Klein excitations. We explore the phenomenology of this NG boson and derive constraints from LHC experiments, stellar cooling, and Big Bang Nucleosynthesis.
