Spin correlation in t(t)over-bar production from p(p)over-bar collisions at root s=1.8 TeV

	Spin correlation in t(t)over-bar production from p(p)over-bar collisions at root s=1.8 TeV
刊名	PHYSICAL REVIEW LETTERS
	2000
卷号	85 期号:2 页码:256-261
关键词	TOP-QUARK PAIR PRODUCTION CROSS-SECTION ART. NO. 052001 COLLIDER DETECTOR E(+)E(-) COLLIDERS HADRON COLLIDERS DILEPTON EVENTS DECAY MASS FERMILAB
通讯作者	Abbott, B (reprint author), NYU, New York, NY 10003 USA.
英文摘要	The D0 collaboration has performed a study of spin correlation in t (t) over tilde production for the process t (t) over bar --> bW(+)(b) over bar W-, where the W bosons decay to e nu or mu nu. A sample of six events was collected during an exposure of the DO detector to an integrated luminosity of approximately 125 pb(-1) of root s = 1.8 TeV p (p) over bar collisions. The standard model (SM) predicts that the short lifetime of the top quark ensures the transmission of any spin information at production to the t (t) over bar decay products. The degree of spin correlation is characterized by a correlation coefficient kappa. We find that kappa > -0.25 at the 68% confidence level. in agreement with the SM prediction of kappa = 0.88.
学科主题	Physics
类目[WOS]	Physics, Multidisciplinary
收录类别	SCI
语种	英语
WOS记录号	WOS:000088048700008
公开日期	2016-02-25
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/212053]
专题	高能物理研究所_实验物理中心
推荐引用方式 GB/T 7714	. Spin correlation in t(t)over-bar production from p(p)over-bar collisions at root s=1.8 TeV[J]. PHYSICAL REVIEW LETTERS,2000,85(2):256-261.
APA	(2000).Spin correlation in t(t)over-bar production from p(p)over-bar collisions at root s=1.8 TeV.PHYSICAL REVIEW LETTERS,85(2),256-261.
MLA	"Spin correlation in t(t)over-bar production from p(p)over-bar collisions at root s=1.8 TeV".PHYSICAL REVIEW LETTERS 85.2(2000):256-261.