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Modelling Z -> tau tau processes in ATLAS with tau-embedded Z -> mu mu data
ATLAS Collaboration
2015
发表期刊JOURNAL OF INSTRUMENTATION
卷号10页码:P09018
文章类型Article
摘要This paper describes the concept, technical realisation and validation of a largely data-driven method to model events with Z -> tau tau decays. In Z -> mu mu events selected from proton-proton collision data recorded at root s = 8 TeV with the ATLAS experiment at the LHC in 2012, the Z decay muons are replaced by tau leptons from simulated Z -> tau tau decays at the level of reconstructed tracks and calorimeter cells. The tau lepton kinematics are derived from the kinematics of the original muons. Thus, only the well-understood decays of the Z boson and tau leptons as well as the detector response to the tau decay products are obtained from simulation. All other aspects of the event, such as the Z boson and jet kinematics as well as effects from multiple interactions, are given by the actual data. This so-called tau-embedding method is particularly relevant for Higgs boson searches and analyses in tau tau final states, where Z -> tau tau decays constitute a large irreducible background that cannot be obtained directly from data control samples. In this paper, the relevant concepts are discussed based on the implementation used in the ATLAS Standard Model H -> tau tau analysis of the full datataset recorded during 2011 and 2012.
关键词Performance of High Energy Physics Detectors Simulation methods and programs Analysis and statistical methods
学科领域Instruments & Instrumentation
DOI10.1088/1748-0221/10/09/P09018
收录类别SCI ; EI
WOS类目Instruments & Instrumentation
WOS记录号WOS:000362421300021
引用统计
被引频次:2[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/228793
专题实验物理中心
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ATLAS Collaboration. Modelling Z -> tau tau processes in ATLAS with tau-embedded Z -> mu mu data[J]. JOURNAL OF INSTRUMENTATION,2015,10:P09018.
APA ATLAS Collaboration.(2015).Modelling Z -> tau tau processes in ATLAS with tau-embedded Z -> mu mu data.JOURNAL OF INSTRUMENTATION,10,P09018.
MLA ATLAS Collaboration."Modelling Z -> tau tau processes in ATLAS with tau-embedded Z -> mu mu data".JOURNAL OF INSTRUMENTATION 10(2015):P09018.
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