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Simultaneous least squares fitter based on the Lagrange multiplier method
Guan, YH; Lu, XR; Zheng, YH; Zhu, YS;朱永生
2013
发表期刊CHINESE PHYSICS C
卷号37期号:10页码:106201
摘要We developed a least squares fitter used for extracting expected physics parameters from the correlated experimental data in high energy physics. This fitter considers the correlations among the observables and handles the nonlinearity using linearization during the chi(2) minimization. This method can naturally be extended to the analysis with external inputs. By incorporating with Lagrange multipliers, the fitter includes constraints among the measured observables and the parameters of interest. We applied this fitter to the study of the D-0-(D) over bar (0) mixing parameters as the test-bed based on MC simulation. The test results show that the fitter gives unbiased estimators with correct uncertainties and the approach is credible.
关键词least squares correlated uncertainties nonlinearity constrained fit
学科领域Physics
DOI10.1088/1674-1137/37/10/106201
收录类别SCI
WOS记录号WOS:000325445200012
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被引频次:6[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/311005/224767
专题实验物理中心
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GB/T 7714
Guan, YH,Lu, XR,Zheng, YH,et al. Simultaneous least squares fitter based on the Lagrange multiplier method[J]. CHINESE PHYSICS C,2013,37(10):106201.
APA Guan, YH,Lu, XR,Zheng, YH,&Zhu, YS;朱永生.(2013).Simultaneous least squares fitter based on the Lagrange multiplier method.CHINESE PHYSICS C,37(10),106201.
MLA Guan, YH,et al."Simultaneous least squares fitter based on the Lagrange multiplier method".CHINESE PHYSICS C 37.10(2013):106201.
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