Searches for scalar top and scalar bottom quarks in e(+)e(-) interactions at 161GeV <=root s <= 183GeV

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	Searches for scalar top and scalar bottom quarks in e(+)e(-) interactions at 161GeV <=root s <= 183GeV
刊名	PHYSICS LETTERS B
	1999
卷号	445 期号:3--4 页码:428-438
关键词	ELECTRON-POSITRON COLLISIONS STATE QED CORRECTIONS W-PAIR PRODUCTION STANDARD MODEL L3 EXPERIMENT MONTE-CARLO DETECTOR SUPERSYMMETRY ENERGIES LEP2/NLC
通讯作者	Acciarri, M (reprint author), Rhein Westfal TH Aachen, Inst Phys 1, D-52056 Aachen, Germany.
英文摘要	Searches for scalar top and scalar bottom quarks have been performed at center-of-mass energies between 161 GeV and 183 GeV using the L3 detector at LEP. No signal is observed. Model-independent limits on production cross sections are determined for the two decay channels (t) over tilde --> c<(chi)over tilde>(0)(1) and (b) over tilde(1) --> b<(chi)over tilde>(0)(1). Within the framework of the Minimal Supersymmetric extension of the Standard Model mass limits are derived. For mass differences between (t) over tilde(1) and <(chi)over tilde>(0)(1) greater than 10 GeV a 95% C.L. limit of 81.5 GeV is set on the mass of the Supersymmetric partner of the left-handed top. A supersymmetric partner of the left-handed bottom with a mass below 80 GeV is excluded at 95% C.L. if the mass difference between bl and <(chi)over tilde>(0)(1) is greater than 20 GeV. (C) 1999 Published by Elsevier Science B.V. All rights reserved.
学科主题	Physics
类目[WOS]	Physics, Multidisciplinary
收录类别	SCI
语种	英语
WOS记录号	WOS:000078164900029
公开日期	2016-02-25
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/211963]
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	. Searches for scalar top and scalar bottom quarks in e(+)e(-) interactions at 161GeV <=root s <= 183GeV[J]. PHYSICS LETTERS B,1999,445(3--4):428-438.
APA	(1999).Searches for scalar top and scalar bottom quarks in e(+)e(-) interactions at 161GeV <=root s <= 183GeV.PHYSICS LETTERS B,445(3--4),428-438.
MLA	"Searches for scalar top and scalar bottom quarks in e(+)e(-) interactions at 161GeV <=root s <= 183GeV".PHYSICS LETTERS B 445.3--4(1999):428-438.