Measurement of the top-quark mass in the fully hadronic decay channel from ATLAS data at root s=7 TeV

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F15%3A10318088" target="_blank" >RIV/00216208:11320/15:10318088 - isvavai.cz</a>
Alternative codes found
RIV/68407700:21340/15:00238867 RIV/68407700:21670/15:00238867 RIV/68407700:21220/15:00238867 RIV/61989592:15310/15:33154440
Result on the web
<a href="http://dx.doi.org/10.1140/epjc/s10052-015-3373-1" target="_blank" >http://dx.doi.org/10.1140/epjc/s10052-015-3373-1</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1140/epjc/s10052-015-3373-1" target="_blank" >10.1140/epjc/s10052-015-3373-1</a>

Result language
angličtina
Original language name
Measurement of the top-quark mass in the fully hadronic decay channel from ATLAS data at root s=7 TeV
Original language description
The mass of the top quark is measured in a data set corresponding to 4.6 fb(-1) of proton-proton collisions with centre-of-mass energy root s = 7 TeV collected by the ATLAS detector at the LHC. Events consistent with hadronic decays of top-antitop quarkpairs with at least six jets in the final state are selected. The substantial background from multijet production is modelled with data-driven methods that utilise the number of identified b-quark jets and the transverse momentum of the sixth leading jet, which have minimal correlation. The top-quark mass is obtained from template fits to the ratio of three-jet to dijet mass. The three-jet mass is calculated from the three jets produced in a top-quark decay. Using these three jets the dijet mass is obtained from the two jets produced in the W boson decay. The top-quark mass obtained from this fit is thus less sensitive to the uncertainty in the energy measurement of the jets. A binned likelihood fit yields a top-quark mass of m(t) = 175
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)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

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

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