| Measurement of the branching ratio of the K-L ->pi(+) pi(-) decay with the KLOE detector |
| KLOE Collaboration
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| 2006
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发表期刊 | PHYSICS LETTERS B
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卷号 | 638期号:2--3页码:140-145 |
通讯作者 | Antonelli, M (reprint author), Ist Nazl Fis Nucl, Lab Nazl Frascati, Casella Postale 13, I-00044 Frascati, Italy.
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摘要 | We present a measurement of the branching ratio of the CP violating decay K-L -> pi(+)pi(-) performed by the KLOE experiment at the phi factory DA Phi NE. We use 328pb(-1) of data collected in 2001 and 2002, corresponding to similar to 150 million tagged K-L mesons. We find BR(K-L -> pi(+)pi(-)) = (1.963 +/- 0.012(stat). +/- 0.017(syst.)) x 10(-3). This branching ratio measurement is fully inclusive of final-state radiation. Using the above result, we determine the modulus of the amplitude ratio vertical bar eta(+-)| to be (2.219 +/- 0.013) x 10(-3) and vertical bar epsilon vertical bar to be (2.216 +/- 0.013) x 10(-3). (c) 2006 Elsevier B.V. All rights reserved. |
学科领域 | Physics
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DOI | 10.1016/j.physletb.2006.05.039
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收录类别 | SCI
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语种 | 英语
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WOS类目 | Physics, Multidisciplinary
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WOS记录号 | WOS:000238773900009
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引用统计 |
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文献类型 | 期刊论文
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条目标识符 | http://ir.ihep.ac.cn/handle/311005/212686
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专题 | 实验物理中心
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作者单位 | 中国科学院高能物理研究所
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推荐引用方式 GB/T 7714 |
KLOE Collaboration. Measurement of the branching ratio of the K-L ->pi(+) pi(-) decay with the KLOE detector[J]. PHYSICS LETTERS B,2006,638(2--3):140-145.
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APA |
KLOE Collaboration.(2006).Measurement of the branching ratio of the K-L ->pi(+) pi(-) decay with the KLOE detector.PHYSICS LETTERS B,638(2--3),140-145.
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MLA |
KLOE Collaboration."Measurement of the branching ratio of the K-L ->pi(+) pi(-) decay with the KLOE detector".PHYSICS LETTERS B 638.2--3(2006):140-145.
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