Measurement of y(CP) in D-0-(D)over-bar(0) oscillation using quantum correlations in e(+)e(-) -> D-0(D)over-bar(0) at root s=3.773 GeV

	Measurement of y(CP) in D-0-(D)over-bar(0) oscillation using quantum correlations in e(+)e(-) -> D-0(D)over-bar(0) at root s=3.773 GeV
	BESIII Collaboration
刊名	PHYSICS LETTERS B
	2015
卷号	744 页码:339-346
关键词	BESIII D-0-(D)over-bar(0) oscillation y(CP) Quantum correlation
英文摘要	We report a measurement of the parameter y(CP) in D-0-(D) over bar (0) oscillations performed by taking advantage of quantum coherence between pairs of D-0(D) over bar (0) mesons produced in e(+)e(-) annihilations near threshold. In this work, doubly-tagged D-0(D) over bar (0) events, where one D decays to a CP eigenstate and the other D decays in a semileptonic mode, are reconstructed using a data sample of 2.92 fb(-1) collected with the BESIII detector at the center-of-mass energy of root s = 3.773 GeV. We obtain y(CP) = (-2.0 +/- 1.3 +/- 0.7)%, where the first uncertainty is statistical and the second is systematic. This result is compatible with the current world average. (C) 2015 The Authors. Published by Elsevier B.V.
学科主题	Astronomy & Astrophysics; Physics
类目[WOS]	Astronomy & Astrophysics ; Physics, Nuclear ; Physics, Particles & Fields
收录类别	SCI ; CA
WOS记录号	WOS:000353892000054
公开日期	2016-05-03
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/228532]
专题	高能物理研究所_实验物理中心
推荐引用方式 GB/T 7714	BESIII Collaboration. Measurement of y(CP) in D-0-(D)over-bar(0) oscillation using quantum correlations in e(+)e(-) -> D-0(D)over-bar(0) at root s=3.773 GeV[J]. PHYSICS LETTERS B,2015,744:339-346.
APA	BESIII Collaboration.(2015).Measurement of y(CP) in D-0-(D)over-bar(0) oscillation using quantum correlations in e(+)e(-) -> D-0(D)over-bar(0) at root s=3.773 GeV.PHYSICS LETTERS B,744,339-346.
MLA	BESIII Collaboration."Measurement of y(CP) in D-0-(D)over-bar(0) oscillation using quantum correlations in e(+)e(-) -> D-0(D)over-bar(0) at root s=3.773 GeV".PHYSICS LETTERS B 744(2015):339-346.