| DATE: |
2007-05-29 11:00 - 12:00 |
| PLACE: |
Kenkyu Honkan 2F RM 220 |
| TITLE: |
Three site Higgsless model at one loop |
| CONTACT: |
tsuda |
| SPEAKER: |
Shinya Matsuzak (Nagoya Univ.) |
| LANGUAGE: |
English |
| ABSTRACT: |
In this talk, we discuss one-loop chiral logarithmic corrections to the $S$ and $T$ parameters in a highly deconstructed Higgsless model with only three sites. In addition to the electroweak gauge bosons, this model contains a single extra triplet of vector states rather than an infinite tower of ``KK" modes. We also discuss the one-loop chiral logarithmic corrections to all ${\cal O}(p^4)$ counterterms in the model other than those contributing to the $S$ and $T$ parameters. This work reported here includes a complete evaluation of all one-loop divegences in an $SU(2) \times U(1)$ non-linear sigma model, corresponding to an electroweak chiral lagrangian in the absence of custodial symmetry.
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