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arXiv 0910.4876hep-ph
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Randall-Sundrum模型与精密观测量

Randall-Sundrum Models and Precision Observables

Martin Bauer

摘要:

我提出了一个审查的Randall-Sundrum(RS)模型与体费米子和膜本地化的希格斯玻色子的唯象意义。我们将讨论对W玻色子质量的修正、对Peskin-Takeuchi参数的修正以及对Z -> bb耦合的修正。从这些可观的严重边界的质量尺度的卡鲁扎-克莱因(KK)模式出现。来自所有三个观测量的约束对希格斯玻色子质量的精确值非常敏感,并且通过允许重希格斯玻色子(m_h ~ 1 TeV),可以显著降低边界。还将简要讨论其后果以及“小RS”模型和具有保管对称性的模型等其他方法。

英文摘要:

I present a review of phenomenological implications of the Randall-Sundrum (RS) model with bulk fermions and brane-localized Higgs boson. Modifications to the W-boson mass, corrections to the Peskin-Takeuchi parameters and to the Z -> bb couplings will be discussed. From these observables severe bounds on the mass scale of Kaluza-Klein (KK) modes arise. Constraints from all three observables are very sensitive to the exact value of the Higgs boson mass and the bounds can be significantly lowered by allowing for a heavy Higgs boson (m_h ~ 1 TeV). Consequences thereof, as well as other approaches like "little RS" models and models with custodial symmetry will also be briefly discussed.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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