AN S-MATRIX ANALYSIS OF THE Z-RESONANCE

CORC > 高能物理研究所 > 中国科学院高能物理研究所 > 粒子天体物理中心

	AN S-MATRIX ANALYSIS OF THE Z-RESONANCE
	L3 Collaboration
刊名	PHYSICS LETTERS B
	1993
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.
英文摘要	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.
学科主题	Physics
类目[WOS]	Physics, Multidisciplinary
收录类别	SCI
WOS记录号	WOS:A1993MA23400045
公开日期	2016-05-03
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/227702]
专题	高能物理研究所_粒子天体物理中心
推荐引用方式 GB/T 7714	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!.