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Measurement of the form-factor slopes for the decay K-L -> pi(+/-)e(+/-)nu with the KLOE detector
KLOE Collaboration
2006
发表期刊PHYSICS LETTERS B
卷号636期号:3-4页码:#REF!
通讯作者Antonelli, M (reprint author), Ist Nazl Fis Nucl, Lab Nazl Frascati, Casella Postal 13, I-00044 Frascati, Roma, Italy.
摘要We present a measurement of the K-pi vector current form-factor parameters for the decay K-L -> pi(+/-)e(-/+)nu. We use 328 pb(-1) of data collected in 2001 and 2002, corresponding to similar to 2 million K-e3 events. Measurements of semileptonic form factors provide information about the dynamics of the strong interaction and are necessary for evaluation of the phase-space integral I-K(e) needed to measure the CKM matrix element |V-us| for K-L -> pi(+/-)e(-/+)nu decays. Our result is lambda(+) = (28.6 +/- 0.5 +/- 0.4) x 10(-3) for a linear fit, and lambda'(+) = (25.5 +/- 1.5 +/- 1.0) x 10(-3), (1.4 +/- 0.7 +/- 0.4) x 10(-3) for a quadratic fit. (c) 2006 Elsevier B.V. All rights reserved.
文章类型Article
关键词K-e3 form factor
学科领域Physics
DOI10.1016/j.physletb.2006.03.036
收录类别SCI
WOS类目Physics, Multidisciplinary
WOS记录号WOS:000237506900004
引用统计
被引频次:47[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/311005/226628
专题实验物理中心
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KLOE Collaboration. Measurement of the form-factor slopes for the decay K-L -> pi(+/-)e(+/-)nu with the KLOE detector[J]. PHYSICS LETTERS B,2006,636(3-4):#REF!.
APA KLOE Collaboration.(2006).Measurement of the form-factor slopes for the decay K-L -> pi(+/-)e(+/-)nu with the KLOE detector.PHYSICS LETTERS B,636(3-4),#REF!.
MLA KLOE Collaboration."Measurement of the form-factor slopes for the decay K-L -> pi(+/-)e(+/-)nu with the KLOE detector".PHYSICS LETTERS B 636.3-4(2006):#REF!.
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