Aspects of the Domain-Wall Standard Model “Search for a narrow resonance in high-mass dilepton final states in proton-proton collisions using 140fb Of Data at √ = 13 TeV,”
Nobuchika Okada (Department of Physics and Astronomy, The University of Alabama, 514 University Blvd., Tuscaloosa, AL 35487, Tuscaloosa, AL 35487, USA); Digesh Raut (Physics and Materials Science Department, St. Mary’s College of Maryland, 19090 Mathias De Sousa Dr, St Marys City, MD 20686, St. Mary’s City, MD 20686, USA); Desmond Villalba (Department of Chemistry and Physics, University of Mary Washington, 1301 College Ave Fredericksburg, VA 22401, Fredericksburg, VA 22401, USA)
Abstract In the “Domain-Wall Standard Model,” all the Standard Model (SM) fields are localized in certain domains in a non-compact 5D space-time. While the SM is realized as a 4D 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.
