Theory Seminar
KEK 慺棻巕尨巕妀尋媶強丒棟榑僙儈僫乕
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TITLE丗 |
Tree-level unitarity in gauge-Higgs
unification |
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乮in English) |
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SPEAKER丗 |
Dr. Yutaka Sakamura 丂(KEK) |
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DATE丗 |
January 12 (Tue) 11:00-12:00 |
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PLACE: |
Laboratory No.4, Room 345 |
丂丂丂 乮ABSTRACT乯
We numerically estimate a scale 儵 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 儵 = 1.3 mKK in the warped spacetime, and 儵 = 140 mKK in the flat spacetime, where mKK is the Kaluza-Klein mass scale.