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arXiv 0712.1285hep-ph
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超对称理论中的“扁平”电偶极矩

"Flavored" Electric Dipole Moments in Supersymmetric Theories

J. Hisano, M. Nagai, P. Paradisi

摘要:

标准模型对强子电偶极矩的预言与目前的实验结果相差甚远,因而是对新物理学效应的一种很好的探索。特别地,在具有风味改变(但不一定违反CP)软术语的MSSM框架内,通常预期对EDM的大的且潜在可见的影响。在这封信中,我们指出,超越领先阶(BLO)的影响,迄今被忽视的文献中,主导领先阶(LO)的影响在大区域的参数空间,因此,他们列入评估的强子EDM是不可避免的。

英文摘要:

The Standard Model (SM) predictions for the hadronic electric dipole moments (EDMs) are well far from the present experimental resolutions, thus, the EDMs represent very clean probes of New Physics (NP) effects. Especially, within an MSSM framework with flavor-changing (but not necessarily CP violating) soft terms, large and potentially visible effects to the EDMs are typically expected. In this Letter we point out that, beyond-leading-order (BLO) effects, so far neglected in the literature, dominate over the leading-order (LO) effects in large regions of the parameter space, hence, their inclusion in the evaluation of the hadronic EDMs is unavoidable.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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