Flavour violating bosonic squark decays at LHC
Flavour violating bosonic squark decays at LHC
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DOI：
10.1142/s0217751x14500353
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发表时间：
2012-12
影响因子：
1.6
通讯作者：
K. Hidaka;A. Bartl;E. Ginina;H. Eberl;W. Majerotto;Bjorn Herrmann;W. Porod
中科院分区：
文献类型：
--
作者：
K. Hidaka;A. Bartl;E. Ginina;H. Eberl;W. Majerotto;Bjorn Herrmann;W. Porod
研究了最小超对称标准模型（MSSM）夸克扇区中的夸克味破坏（QFV）。我们假设第二代和第三代squark之间的混合，即混合。我们重点关注玻色子夸克衰变中的QFV效应，特别是衰变为最轻的希格斯玻色子，其中有最轻的上型夸克。我们发现，这个QFV衰变的分支比可以是相当大的（高达50%），由于大QFV三线性耦合，大和混合，尽管QFV从B介子数据的强约束。这可能导致在LHC（14 TeV）具有显著速率的特征QFV最终状态，例如和。QFV玻色子夸克衰变可以对LHC的夸克和胶子搜索产生影响。
We study quark flavor violation (QFV) in the squark sector of the Minimal Supersymmetric Standard Model (MSSM). We assume mixing between the second and the third squark generations, i.e. mixing. We focus on QFV effects in bosonic squark decays, in particular on the decay into the lightest Higgs boson , where are the lightest up-type squarks. We show that the branching ratio of this QFV decay can be quite large (up to 50%) due to large QFV trilinear couplings, and large and mixing, despite the strong constraints on QFV from B meson data. This can result in characteristic QFV final states with significant rates at LHC (14 TeV), such as and . The QFV bosonic squark decays can have an influence on the squark and gluino searches at LHC.