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arXiv 0708.2501hep-phhep-th
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(非)超对称模型中的高维算子及其效应

Higher dimensional operators and their effects in (non)supersymmetric models

D. M. Ghilencea

摘要:

它表明,一个4D N=1软破超对称理论与高阶导数算子的Kahler或超势部分的拉格朗日函数,否则任意的超势,可以重新制定为一个理论,没有高阶导数,但与额外的(鬼)超场和修改的相互作用。的解析延拓闵可夫斯基-欧几里德时空的UV行为,这样的理论的重要性进行了详细讨论。特别是它示出了在闵可夫斯基时空中的发散的功率计数并不总是工作在模型中具有较高的导数算子。

英文摘要:

It is shown that a 4D N=1 softly broken supersymmetric theory with higher derivative operators in the Kahler or the superpotential part of the Lagrangian and with an otherwise arbitrary superpotential, can be re-formulated as a theory without higher derivatives but with additional (ghost) superfields and modified interactions. The importance of the analytical continuation Minkowski-Euclidean space-time for the UV behaviour of such theories is discussed in detail. In particular it is shown that power counting for divergences in Minkowski space-time does not always work in models with higher derivative operators.

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