Measurement of inclusive W and Z boson production cross sections in pp collisions at s =8TeV

Please use this identifier to cite or link to this item: https://ir.lib.ncu.edu.tw/handle/987654321/105201

Title:	Measurement of inclusive W and Z boson production cross sections in pp collisions at s =8TeV
Authors:	林宗泰;Chatrchyan, S
Contributors:	理學院物理學系
Keywords:	Bosons;Collisions;Cross sections;Detectors;Lead (metal);Luminosity;Mathematical analysis;Muons
Date:	2014-05-14
Issue Date:	2026-04-23 12:10:47 (UTC+8)
Abstract:	摘要： A measurement of total and fiducial inclusive W and Z boson production cross sections in pp collisions at [radical]s = 8 TeV is presented. Electron and muon final states are analyzed in a data sample collected with the CMS detector corresponding to an integrated luminosity of 18.2 + or - 0.5 pb super(-1). The measured total inclusive cross sections times branching fractions are [sigma](pp arrow right WX) x [scriptB](W arrow right [scriptl]v) = 12.21 + or - 0.03(stat) + or - 0.24(syst) + or - 0.32(lum) nb and [sigma](pp arrow right ZX) x [scriptB](Z arrow right [scriptl] super(+)[scriptl] super(-)) = 1.15 + or - 0.01(stat) + or - 0.02(syst) + or - 0.03(lum) nb for the dilepton mass in the range of 60-120 GeV. The measured values agree with next-to-next-to-leading-order QCD cross section calculations. Ratios of cross sections are reported with a precision of 2%. This is the first measurement of inclusive W and Z boson production in proton-proton collisions at [radical]s = 8 TeV. 出版日期： 2014-05-16 出處： Physical review letters, 2014-05, Vol.112 (19) 資源來源： American Physical Society Journals 識別號： ISSN: 0031-9007 識別號： EISSN: 1079-7114 識別號： DOI: 10.1103/PhysRevLett.112.191802
Appears in Collections:	[Department of Physics] journal & Dissertation

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