Bounds on the mass and coupling constant of radion in the Randall–Sundrum theory

2000/11/30 by Saebyok Bae, Hong Seok Lee · 5 citations
Physics and Astronomy · #Constant (computer programming) #Coupling (piping) #Coupling constant #Higgs boson #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #Randall–Sundrum model #Upper and lower bounds #hep-ph

paper · pdf · doi:10.1016/s0370-2693(01)00415-4

published in Physics Letters B 506(1-2), 147-154 (Elsevier BV) · 11 pages, 3 figures, a minor change, to appear in Phys. Lett. B

arxiv created 2001/04/17 · openalex publication_date 2001/05/01 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

Assuming the Goldberger-Wise mechanism, we investigated the effective potential at the one-loop level in the Randall-Sundrum theory. We found the lower and upper bounds of the radion mass m_ϕand the radion-SM coupling constant, 0.8 GeV \lesssim m_ϕ\lesssim 260 GeV and 1400 GeV \lesssim Λ_ϕ\lesssim 1500 GeV for the one-loop level potential. These bounds were determined from two constraints of warp factor = O(M_W/M_Pl) and Higgs vev ≃ 246 GeV, which can produce strong bounds of m_ϕand Λ_ϕ. It is phenomenologically important that the one-loop allowed upper bound of the radion mass is about five times larger than the tree-level one, but the radion is still lighter than the Kaluza-Klein modes.

Citations

• The effective potential and the renormalisation group
• Large Mass Hierarchy from a Small Extra Dimension
• Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant
• The Hierarchy Problem and New Dimensions at a Millimeter

Cited by

• Exact identification of the radion and its coupling to the observable sector
• Analyzing the general conditions for modulus stabilization in a warped braneworld