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AN S-MATRIX ANALYSIS OF THE Z-RESONANCE
L3 Collaboration
1993
发表期刊PHYSICS LETTERS B
卷号315期号:3-4页码:#REF!
通讯作者ADRIANI, O (reprint author), RHEIN WESTFAL TH AACHEN, INST PHYS 1, W-5100 AACHEN, GERMANY.
摘要The S matrix ansatz is a rigorously model independent approach to describe the cross-sections and asymmetries in e+ e- annihilation. Using the cross-sections and asymmetries measured with the L3 detector during the 1990 and 1991 running period, we determine the mass and the width of the Z boson, the contributions of the Z exchange and of the gammaZ interference. Including the polarization of the tau lepton in the analysis, the leptonic helicity amplitudes of the scattering process are determined assuming lepton universality. The results are compared with other model independent ansatzes as realized in ZFITTER. A systematic bias of the Z mass due to the gammaZ interference term is detected, which leads to an underestimation of the error on m(Z) for model independent determinations.
文章类型Article
学科领域Physics
DOI10.1016/0370-2693(93)91646-5
收录类别SCI
WOS类目Physics, Multidisciplinary
WOS记录号WOS:A1993MA23400045
引用统计
被引频次:21[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/311005/227702
专题粒子天体物理中心
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L3 Collaboration. AN S-MATRIX ANALYSIS OF THE Z-RESONANCE[J]. PHYSICS LETTERS B,1993,315(3-4):#REF!.
APA L3 Collaboration.(1993).AN S-MATRIX ANALYSIS OF THE Z-RESONANCE.PHYSICS LETTERS B,315(3-4),#REF!.
MLA L3 Collaboration."AN S-MATRIX ANALYSIS OF THE Z-RESONANCE".PHYSICS LETTERS B 315.3-4(1993):#REF!.
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