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arXiv 1105.3087hep-ph
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弯曲额外维中的Radion Flavor破坏

Radion Flavor Violation in Warped Extra Dimension

K. Huitu, S. Khalil, A. Moursy, S. K. Rai, A. Sabanci

摘要:

我们分析了在弯曲的额外维度由于radion调解的味道违反。我们证明了ΔS=2和ΔB=2的味破坏过程对Radion质量m_∞和标度Λ_∞有严格的限制.特别地,对于Λ_ε ~ O(1)TeV,B_d^0- \bar{B}^0_d意味着m_ε ~ 65 GeV.我们还研究了Radion对轻子味破坏过程τ->(e,μ)τ_s,τ-> eμ^+μ^-和B -> l_i l_j的贡献.我们证明了BR(B_s -> μ^+ μ^-)可以达到10^{-8}阶,这在LHCb是可达的.还考虑了在LHC中通过味破坏衰变到τμ或顶粲夸克的Radion搜索。

英文摘要:

We analyze the flavor violation in warped extra dimension due to radion mediation. We show that ΔS=2 and ΔB=2 flavor violating processes impose stringent constraints on radion mass, m_ϕand the scale Λ_ϕ. In particular, for Λ_ϕ~ O(1) TeV, B_d^0-\bar{B}^0_d implies that m_ϕ~ 65 GeV. We also study radion contributions to lepton flavor violating processes: τ-> (e,μ) ϕ, τ-> eμ^+μ^- and B -> l_i l_j. We show that BR(B_s -> μ^+ μ^-) can be of order 10^{-8}, which is reachable at the LHCb. The radion search at LHC, through the flavor violation decays into τμor top-charm quarks, is also considered.

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