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arXiv 0905.1782hep-ph
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在ILC中性伴子产生中CP敏感的自旋-自旋关联

CP-sensitive spin-spin correlations in neutralino production at the ILC

A. Bartl, K. Hohenwarter-Sodek, T. Kernreiter, O. Kittel, M. Terwort

摘要:

本文研究了中性伴子产生过程中自旋-自旋关联的CP破坏项及其在ILC中的两体衰变。我们分析CP敏感的可观测量的帮助下的T-奇数产品的自旋自旋项。这些项取决于两个中性伴子的极化,其中一个极化垂直于生产面。本文详细地研究了具有复参数的最小超对称标准模型中CP敏感的可观测量、散射截面和中性伴子分支比。

英文摘要:

We study the CP-violating terms of the spin-spin correlations in neutralino production and their subsequent two-body decays into sleptons plus leptons at the ILC. We analyze CP-sensitive observables with the help of T-odd products of the spin-spin terms. These terms depend on the polarizations of both neutralinos, with one polarization perpendicular to the production plane. We present a detailed numerical study of the CP-sensitive observables, cross sections, and neutralino branching ratios in the Minimal Supersymmetric Standard Model with complex parameters.

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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