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Measurement of the wrong-sign decays D-0 -> K+pi(-)pi(0) and D-0 -> K+pi(-)pi(+)pi(-), and search for CP violation
Belle Collaboration
2005
发表期刊PHYSICAL REVIEW LETTERS
卷号95期号:23
通讯作者Tian, XC (reprint author), Peking Univ, Beijing 100871, Peoples R China.
摘要Using 281 fb(-1) of data from the Belle experiment recorded at or near the Upsilon(4S) resonance, we have measured the rates of the "wrong-sign" decays D-0 -> K+pi(-)pi(0) and D-0 -> K+pi(-)pi(+)pi(-) relative to those of the Cabibbo-favored decays D-0 -> K-pi(+)pi(0) and D-0 -> K-pi(+)pi(+)pi(-). These wrong-sign decays proceed via a doubly Cabibbo-suppressed amplitude or via D-0-(D) over bar (0) mixing; the latter has not yet been observed. We obtain R-WS(K pi pi(0))=[0.229 +/- 0.015(stat)(-0.009)(+0.013)(syst)]% and R-WS(K3 pi)=[0.320 +/- 0.018(stat)(-0.013)(+0.018)(syst)]%. The CP asymmetries are measured to be -0.006 +/- 0.053 and -0.018 +/- 0.044 for the K+pi(-)pi(0) and K+pi(-)pi(+)pi(-) final states, respectively.
学科领域Physics
DOI10.1103/PhysRevLett.95.231801
收录类别SCI
语种英语
WOS类目Physics, Multidisciplinary
WOS记录号WOS:000233724000020
引用统计
被引频次:22[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/212629
专题实验物理中心
作者单位中国科学院高能物理研究所
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Belle Collaboration. Measurement of the wrong-sign decays D-0 -> K+pi(-)pi(0) and D-0 -> K+pi(-)pi(+)pi(-), and search for CP violation[J]. PHYSICAL REVIEW LETTERS,2005,95(23).
APA Belle Collaboration.(2005).Measurement of the wrong-sign decays D-0 -> K+pi(-)pi(0) and D-0 -> K+pi(-)pi(+)pi(-), and search for CP violation.PHYSICAL REVIEW LETTERS,95(23).
MLA Belle Collaboration."Measurement of the wrong-sign decays D-0 -> K+pi(-)pi(0) and D-0 -> K+pi(-)pi(+)pi(-), and search for CP violation".PHYSICAL REVIEW LETTERS 95.23(2005).
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