Modelling Z -> tau tau processes in ATLAS with tau-embedded Z -> mu mu data

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F15%3A33156664" target="_blank" >RIV/61989592:15310/15:33156664 - isvavai.cz</a>
Alternative codes found
RIV/68407700:21340/15:00238906 RIV/68407700:21670/15:00238906 RIV/68407700:21220/15:00238906 RIV/00216208:11320/15:10318507
Result on the web
<a href="http://iopscience.iop.org/article/10.1088/1748-0221/10/09/P09018/pdf" target="_blank" >http://iopscience.iop.org/article/10.1088/1748-0221/10/09/P09018/pdf</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/1748-0221/10/09/P09018" target="_blank" >10.1088/1748-0221/10/09/P09018</a>

Result language
angličtina
Original language name
Modelling Z -> tau tau processes in ATLAS with tau-embedded Z -> mu mu data
Original language description
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.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BF - Elementary particle theory and high energy physics
OECD FORD branch
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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