On the Perturbative Approach in the Randall-Sundrum Model
| Autor: | Torsten Pfoh, Florian Goertz |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2008 |
| Předmět: |
Physics
Nuclear and High Energy Physics Gauge boson Spontaneous symmetry breaking High Energy Physics::Lattice Electroweak interaction High Energy Physics::Phenomenology FOS: Physical sciences Higgs sector Theoretical physics High Energy Physics - Phenomenology High Energy Physics - Phenomenology (hep-ph) Randall–Sundrum model Symmetry breaking Gauge theory Perturbation theory (quantum mechanics) |
| Popis: | We study a SU(2)_L x U(1)_Y gauge theory in the Randall-Sundrum background, including electroweak symmetry breaking due to a brane-localized Higgs sector. We work in the decomposed four dimensional theory and treat the symmetry breaking effects as a perturbation. Although there is an exact approach, this method is widely used and quite intuitive. We extend existing studies by giving explicit analytical expressions in a covariant R_xi gauge, needed for loop calculations in the decomposed theory. The perturbative approach is also applied to fermions and a comparison of the gauge boson and fermion spectra with the exact results is presented, validating the perturbative method used in the literature. 16 pages, 3 figures; reference added; version to appear in JHEP |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|