Aspects of Domain-Wall Standard Model
arXiv:1801.03007
Abstract
We have recently proposed a setup of the "Domain-Wall Standard Model" in a non-compact 5-dimensional space-time, where all the Standard Model (SM) fields are localized in certain domains of the 5th dimension. While the SM is realized as a 4-dimensional effective theory at low energies, the model involves Kaluza-Klein (KK) modes of the SM particles. In this paper we introduce two simple solvable examples which lead to domain-wall configurations for the SM particles and their KK-modes. Based on the examples, we address a variety of phenomenologies of the Domain-Wall SM, such as the KK-mode gauge boson phenomenology at the Large Hadron Collider (LHC), the effect of the KK-mode SM fermions on Higgs boson phenomenology, and the KK-mode fermion search at the LHC with its decay into a corresponding SM fermion and a Nambu-Goldstone boson associated with a spontaneous breaking of the translational invariance in the 5th dimension. We also propose a simple unified picture of localizing all the SM fields.
arXiv comment22 pages, 3 figures. arXiv admin note: text overlap with arXiv:1712.09323 We had left this paper for some time and we wanted to submit it to a journal, therefore we made some minor updates. We have only updated figure 2 on page 14 and the subtext, figure 3 on page 16 and the subtext, and updated the references to reflect modern ATLAS/CMS constraints
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