2003/05/31 by Hooman Davoudiasl, H. Davoudiasl, J. L. Hewett +3 · 1 citation
Physics and Astronomy · #Black Holes and Theoretical Physics #Brane #Brane cosmology #Cosmology and Gravitation Theories #Curvature #Extra dimensions #Geometry #Gravitation #Graviton #Hierarchy problem #Higgs boson #Large extra dimension #Noncommutative and Quantum Gravity Theories #Observable #Particle physics #Phenomenology (philosophy) #Physics #Quantum mechanics #Randall–Sundrum model #Theoretical physics #hep-ex #hep-ph #hep-th
paper · pdf · doi:10.1088/1126-6708/2003/08/034
published as JHEP 0308 (2003) 034 · 20 pages, 11 figures, LaTex, minor revisions
openalex publication_date 2003/08/22 · arxiv created 2003/09/12 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We study the effects of including brane localized curvature terms in the Randall-Sundrum (RS) model of the hierarchy. This leads to the existence of brane localized kinetic terms for the graviton. Such terms can be induced by brane and bulk quantum effects as well as Higgs-curvature mixing on the brane. We derive the modified spectrum of Kaluza-Klein (KK) gravitons and their couplings to 4-dimensional fields in the presence of these terms. We find that the masses and couplings of the KK gravitons have considerable dependence on the size of the brane localized terms; the weak-scale phenomenology of the model is consequently modified . In particular, the weak-scale spin-2 graviton resonances which generically appear in the RS model may be significantly lighter than previously assumed. However, they may avoid detection as their widths may be too narrow to be observable at colliders. In the contact interaction limit, for a certain range of parameters, the experimental reach for the scale of the theory is independent of the size of the boundary terms.