| DATE: |
2010-01-12 11:00 - 12:00 |
| PLACE: |
4 Go-Kan Rm. 345 |
| TITLE: |
Tree-level unitarity in gauge-Higgs unification |
| CONTACT: |
HYAKUTAKE Yoshifumi, hyaku AT post.kek.jp |
| SPEAKER: |
Dr. Yutaka Sakamura (KEK) |
| LANGUAGE: |
English |
| ABSTRACT: |
We numerically estimate a scale ĻĢ at which tree-level unitarity is violated in the SO(5)xU(1) gauge-Higgs unification model by evaluating amplitudes for scattering of the longitudinal W bosons. The scattering amplitudes take larger values in the Randall-Sundrum warped spacetime than in the flat spacetime. We found that ĻĢ = 1.3 mKK in the warped spacetime, and ĻĢ = 140 mKK in the flat spacetime, where mKK is the Kaluza-Klein mass scale. |
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