Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2002-03-05
Phys.Rev.D66:064021,2002
Physics
High Energy Physics
High Energy Physics - Phenomenology
16 pages, LaTeX, 1 figure included, uses JHEP.cls, extended introduction, added references
Scientific paper
10.1103/PhysRevD.66.064021
We consider the two-brane Randall-Sundrum (RS) model with bulk gauge fields. We carefully match the bulk theory to a 4D low-energy effective Lagrangian. In addition to the four-fermion operators induced by KK exchange we find that large negative S and T parameters are induced in the effective theory. This is a tree-level effect and is a consequence of the shapes of the W and Z wave functions in the bulk. Such effects are generic in extra dimensional theories where the standard model (SM) gauge bosons have non-uniform wave functions along the extra dimension. The corrections to precision electroweak observables in the RS model are mostly dominated by S. We fit the parameters of the RS model to the experimental data and find somewhat stronger bounds than previously obtained; however, the standard model bound on the Higgs mass from precision measurements can only be slightly relaxed in this theory.
Csa'ki Csaba
Erlich Joshua
Terning John
No associations
LandOfFree
The Effective Lagrangian in the Randall-Sundrum Model and Electroweak Physics does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with The Effective Lagrangian in the Randall-Sundrum Model and Electroweak Physics, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Effective Lagrangian in the Randall-Sundrum Model and Electroweak Physics will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-124838