Improved W boson mass measurement with the DO detector

	Improved W boson mass measurement with the DO detector
刊名	PHYSICAL REVIEW D
	2002
卷号	66 期号:1
关键词	GLOBAL QCD ANALYSIS TOP-QUARK MASS PARTON DISTRIBUTIONS E(+)E(-) COLLISIONS COLLIDER DETECTOR D0 DETECTOR FERMILAB WIDTH
通讯作者	Abazov, VM (reprint author), Joint Nucl Res Inst, Dubna, Russia.
英文摘要	We have measured the W boson mass using the DO detector and a data sample of 82 pb(-1) from the Fermilab Tevatron collider. This measurement uses W-->enu decays, where the electron is close to a boundary of a central electromagnetic calorimeter module. Such "edge" electrons have not been used in any previous DO analysis, and represent a 14% increase in the W boson sample size. For these electrons, new response and resolution parameters are determined, and revised backgrounds and underlying event energy flow measurements are made. When the current measurement is combined with previous DO W boson mass measurements, we obtain M-W=80.483+/-0.084 GeV. The 8% improvement from the previous DO measurement is primarily due to the improved determination of the response parameters for non-edge electrons using the sample of Z bosons with non-edge and edge electrons.
学科主题	Astronomy & Astrophysics; Physics
类目[WOS]	Astronomy & Astrophysics ; Physics, Particles & Fields
收录类别	SCI
语种	英语
WOS记录号	WOS:000177338600005
公开日期	2016-02-26
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/212225]
专题	高能物理研究所_实验物理中心
推荐引用方式 GB/T 7714	. Improved W boson mass measurement with the DO detector[J]. PHYSICAL REVIEW D,2002,66(1).
APA	(2002).Improved W boson mass measurement with the DO detector.PHYSICAL REVIEW D,66(1).
MLA	"Improved W boson mass measurement with the DO detector".PHYSICAL REVIEW D 66.1(2002).