Does the three site Higgsless model survive the electroweak precision tests at loop?
| dc.creator | Abe, Tomohiro | |
| dc.creator | Matsuzaki, Shinya | |
| dc.creator | Tanabashi, Masaharu | |
| dc.date | 2008-07-15 | |
| dc.date | 2008-09-05 | |
| dc.date.accessioned | 2026-07-07T11:44:49Z | |
| dc.date.available | 2026-07-07T11:44:49Z | |
| dc.description | We complete the list of one loop renormalization group equations and matching conditions relevant for the computation of the electroweak precision parameters $S$ and $T$ in the three site Higgsless model. We obtain one-loop formulas for $S$ and $T$ expressed in terms of physical observables such as the KK gauge boson mass $M_{W'}$, the KK fermion mass $M$, and the KK gauge boson ($W'$) couplings with light quarks and leptons $g_{W'ff}$. It is shown that these physical observables, $M_{W'}$, $M$ and $g_{W'ff}$ are severely constrained by the electroweak precision data. Unlike the tree level analysis on the ideally delocalized fermion, we find that perfect fermiophobity of $W'$ is ruled out by the precision data. We also study the cutoff dependence of our analysis. Although the model is non-renormalizable, the dependence on the cutoff parameter $Λ$ is shown to be non-significant. | |
| dc.description | 13pages, 5figures, minor corrections made, references added | |
| dc.identifier | https://arxiv.org/abs/0807.2298 | |
| dc.identifier | http://arxiv.org/abs/0807.2298 | |
| dc.identifier | Phys.Rev.D78:055020,2008 | |
| dc.identifier | doi:10.1103/PhysRevD.78.055020 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/201684 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Does the three site Higgsless model survive the electroweak precision tests at loop? | |
| dc.type | text |