B--> π K难题与超对称性
The B-->pi K Puzzle and Supersymmetry
摘要：
目前，在B-->pi K衰变中的几个观测值的测量与标准模型的预测之间存在差异（"B-->pi K难题“）。虽然这种效应在统计上还不显著--它处于$\gsim 3σ$的水平--但它确实暗示了新物理学的存在。在本文中，我们探讨超对称性（SUSY）是否可以解释B--> π K难题。特别是，我们考虑了Grossman，Neubert和Kagan（GNK）的超对称模型。我们发现GNK解释B-->pi K数据的可能性极小。我们也发现类似的结论在许多其他模型的超对称性。对于两个超对称模型，也有严重的批评，因为它们确实重现了B-->pi K数据。如果B-->pi K难题仍然存在，它可能会给超对称模型带来问题。
英文摘要：
At present, there are discrepancies between the measurements of several observables in B-->pi K decays and the predictions of the standard model (the ``B-->pi K puzzle''). Although the effect is not yet statistically significant -- it is at the level of $\gsim 3σ$ -- it does hint at the presence of new physics. In this paper, we explore whether supersymmetry (SUSY) can explain the B-->pi K puzzle. In particular, we consider the SUSY model of Grossman, Neubert and Kagan (GNK). We find that it is extremely unlikely that GNK explains the B-->pi K data. We also find a similar conclusion in many other models of SUSY. And there are serious criticisms of the two SUSY models that do reproduce the B-->pi K data. If the B-->pi K puzzle remains, it could pose a problem for SUSY models.
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