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arXiv 1105.2979hep-ex
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在CDF的魅力中寻找新物理

Searching for New Physics through Charm at CDF

Angelo Di Canto

摘要:

我们报道了通过测量Cabibbo抑制的D 0->pi+pi-和D 0->K+K-衰变中CP破坏的不对称性来寻找非标准模型物理的研究,这些衰变在约5.94/fb的CDF数据中重建。我们利用强D*+-> D 0 pi+衰变(“D* 标记”)来识别粲介子在产生时的味道,并利用CP守恒的强c-cbar对产生在p-pbar碰撞中。大样本的Cabibbo有利于D 0->K-pi+衰变与和没有D* 标签用于高度抑制系统的不确定性,由于检测器的影响。这是迄今为止世界上最精确的测量结果。

英文摘要:

We report a search for non-Standard Model physics through the measurement of CP-violating asymmetry in the Cabibbo suppressed D0->pi+pi- and D0->K+K- decays reconstructed in about 5.94/fb of CDF data. We use the strong D*+->D0pi+ decay ("D* tag") to identify the flavor of the charmed meson at production time and exploit CP-conserving strong c-cbar pair-production in p-pbar collisions. Large samples of Cabibbo favored D0->K-pi+ decays with and without D* tag are used to highly suppress systematic uncertainties due to detector effects. The results are the world's most precise measurements to date.

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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