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EVIDENCE FOR THE TRIPLE-GLUON VERTEX FROM MEASUREMENTS OF THE QCD COLOR FACTORS IN Z-DECAY INTO 4 JETS
ALEPH Collaboration
1992
发表期刊PHYSICS LETTERS B
卷号284期号:1-2页码:#REF!
通讯作者DECAMP, D (reprint author), CNRS,IN2P3,PHYS PARTICULES LAB,F-74019 ANNECY LE VIEUX,FRANCE.
摘要A sample of 4148 four-jet events observed in the ALEPH-detector at LEP in 1989 and 1990 is used to test the underlying gauge group of strong interactions. A fit to the ratios of the "colour factors" C(F), N(C) and T(F), which determine the differential cross sections, yields N(C)/C(F) = 2.24 +/- 0.32stat +/- 0.24syst and T(F)/C(F) = 0.58 +/- 0.17stat +/- 0.23syst. This is in agreement with the values expected from QCD: N(C)/C(F) = 2.25 and T(F)/C(F) = 0.375. The non-zero value of N(C)/C(F) constitutes direct evidence for the existence of the triple-gluon coupling and excludes any abelian gauge theory by more than five standard deviations.
文章类型Article
学科领域Physics
DOI10.1016/0370-2693(92)91941-2
收录类别SCI
WOS类目Physics, Multidisciplinary
WOS记录号WOS:A1992JC03600027
引用统计
被引频次:34[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/311005/226520
专题实验物理中心
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ALEPH Collaboration. EVIDENCE FOR THE TRIPLE-GLUON VERTEX FROM MEASUREMENTS OF THE QCD COLOR FACTORS IN Z-DECAY INTO 4 JETS[J]. PHYSICS LETTERS B,1992,284(1-2):#REF!.
APA ALEPH Collaboration.(1992).EVIDENCE FOR THE TRIPLE-GLUON VERTEX FROM MEASUREMENTS OF THE QCD COLOR FACTORS IN Z-DECAY INTO 4 JETS.PHYSICS LETTERS B,284(1-2),#REF!.
MLA ALEPH Collaboration."EVIDENCE FOR THE TRIPLE-GLUON VERTEX FROM MEASUREMENTS OF THE QCD COLOR FACTORS IN Z-DECAY INTO 4 JETS".PHYSICS LETTERS B 284.1-2(1992):#REF!.
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