Search for narrow t(t)over-bar resonances in p(p)over-bar collisions at root s=1.8 TeV

	Search for narrow t(t)over-bar resonances in p(p)over-bar collisions at root s=1.8 TeV
刊名	PHYSICAL REVIEW LETTERS
	2004
卷号	92 期号:22
关键词	PARTON DISTRIBUTIONS SYMMETRY-BREAKING PHYSICS
通讯作者	Abazov, VM (reprint author), Joint Inst Nucl Res, Dubna, Russia.
英文摘要	A search for narrow resonances that decay into t (t) over bar pairs has been performed using 130 pb(-1) of data in the lepton + jets channel collected by the DO detector in p (p) over bar collisions at roots=1.8 TeV. There is no significant deviation observed from the standard-model predictions at a top-quark mass of 175 GeV/c(2). We therefore present upper limits at the 95% confidence level on the product of the production cross section and branching fraction to t (t) over bar for narrow resonances as a function of the resonance mass M(X). These limits are used to exclude the existence of a leptophobic top-color particle with mass M(X)<560 GeV/c(2), using a theoretical cross section for a width Gamma(X)=0.012M(X).
学科主题	Physics
类目[WOS]	Physics, Multidisciplinary
收录类别	SCI
语种	英语
WOS记录号	WOS:000221844400011
公开日期	2016-02-26
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/212395]
专题	高能物理研究所_实验物理中心
推荐引用方式 GB/T 7714	. Search for narrow t(t)over-bar resonances in p(p)over-bar collisions at root s=1.8 TeV[J]. PHYSICAL REVIEW LETTERS,2004,92(22).
APA	(2004).Search for narrow t(t)over-bar resonances in p(p)over-bar collisions at root s=1.8 TeV.PHYSICAL REVIEW LETTERS,92(22).
MLA	"Search for narrow t(t)over-bar resonances in p(p)over-bar collisions at root s=1.8 TeV".PHYSICAL REVIEW LETTERS 92.22(2004).