Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2008-10-28
Physics
High Energy Physics
High Energy Physics - Phenomenology
28 pages, 7 figures
Scientific paper
10.1103/PhysRevD.79.013006
We compute the leading chiral-logarithmic corrections to the S parameter in the four-site Higgsless model. In addition to the usual electroweak gauge bosons of the Standard Model, this model contains two sets of heavy charged and neutral gauge bosons. In the continuum limit, the latter gauge bosons can be identified with the first excited Kaluza-Klein states of the W^\pm and Z bosons of a warped extra-dimensional model with an SU(2)_L \times SU(2)_R \times U(1)_X bulk gauge symmetry. We consider delocalized fermions and show that the delocalization parameter must be considerably tuned from its tree-level ideal value in order to reconcile experimental constraints with the one-loop results. Hence, the delocalization of fermions does not solve the problem of large contributions to the S parameter in this class of theories and significant contributions to S can potentially occur at one-loop.
Dawson Sally
Jackson C. B.
No associations
LandOfFree
One-loop Corrections to the S Parameter in the Four-site Model 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 One-loop Corrections to the S Parameter in the Four-site Model, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and One-loop Corrections to the S Parameter in the Four-site Model will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-486097