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arXiv 1402.4024hep-ph
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天然SUSY的风味

The Flavour of Natural SUSY

Felix Brümmer, Sabine Kraml, Suchita Kulkarni, Christopher Smith

摘要:

在夸克扇区中的倒置质量等级,如在所谓的“自然超对称”中,需要在超对称破缺的中介尺度上的非普适边界条件。我们提出了一种形式主义,以定义这样的边界条件在一个独立的方式,并将其应用到通用的情况下,第三代squarks是轻的,而前两代squarks是沉重的和近退化。我们表明,不仅是我们的形式主义特别适合于研究这种层次的squark质量模式,但此外,由此产生的软条款在TeV规模显然是兼容的原则,最小的味道违反,从而自动服从约束的味道物理。

英文摘要:

An inverted mass hierarchy in the squark sector, as in so-called "natural supersymmetry", requires non-universal boundary conditions at the mediation scale of supersymmetry breaking. We propose a formalism to define such boundary conditions in a basis-independent manner and apply it to generic scenarios where the third-generation squarks are light, while the first two generation squarks are heavy and near-degenerate. We show that not only is our formalism particularly well-suited to study such hierarchical squark mass patterns, but in addition the resulting soft terms at the TeV scale are manifestly compatible with the principle of minimal flavour violation, and thus automatically obey constraints from flavour physics.

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