D0-(D)over-bar0 mixing in D0 → Kπ

被引：0
|
作者：
Sokoloff, Michael D. [1 ]
机构：
[1] Univ Cincinnati, Cincinnati, OH 45208 USA
来源：
ACTA PHYSICA POLONICA B | 2008年
关键词：
D O I：
暂无
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Recently, the BaBar collaboration presented evidence for D-0 - (D) over bar (0) mixing in D-0 -> K+pi(-) decays from 384fb(-1) of e(+)e(-) colliding-beam data recorded near root s = 10.6GeV. The reported mixing parameters are x'(2) = [-0.22 0.30(stat.) +/- 0.21 (syst.)] x 10(-3) and y' = [9.7 +/- 4.4(stat.) +/- 3.1(syst.)] x 10(-3) with correlation coefficient -0.94. This excludes the no-mixing hypothesis at the 3.9 sigma level. Earlier results from the BELLE collaboration excluded the no-mixing hypothesis at the 2 a level and are consistent with BaBar's. Combining these results, the no-mixing hypothesis is excluded at the 4 a level. No evidence for CP violation is observed.
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页码：339 / 347
页数：9
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