Measurement of the top-quark mass using a leptonic invariant mass in pp collisions at √s = 13 TeV with the ATLAS detector
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F23%3A00576170" target="_blank" >RIV/68378271:_____/23:00576170 - isvavai.cz</a>
Alternative codes found
RIV/61989592:15310/23:73621548
Result on the web
<a href="https://hdl.handle.net/11104/0346117" target="_blank" >https://hdl.handle.net/11104/0346117</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/JHEP06(2023)019" target="_blank" >10.1007/JHEP06(2023)019</a>
Alternative languages
Result language
angličtina
Original language name
Measurement of the top-quark mass using a leptonic invariant mass in pp collisions at √s = 13 TeV with the ATLAS detector
Original language description
A measurement of the top-quark mass (mtt) in the tt‾tt → lepton + jets channel is presented, with an experimental technique which exploits semileptonic decays of b-hadrons produced in the top-quark decay chain. The distribution of the invariant mass mℓμℓμ of the lepton, ℓ (with ℓ = e, μ), from the W-boson decay and the muon, μ, originating from the b-hadron decay is reconstructed, and a binned-template profile likelihood fit is performed to extract mtt. The measurement is based on data corresponding to an integrated luminosity of 36.1 fb−1−1 of ss = 13 TeV pp collisions provided by the Large Hadron Collider and recorded by the ATLAS detector. The measured value of the top-quark mass is mtt = 174.41 ± 0.39 (stat.) ± 0.66 (syst.) ± 0.25 (recoil) GeV, where the third uncertainty arises from changing the Pythia8 parton shower gluon-recoil scheme, used in top-quark decays, to a recently developed setup.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10303 - Particles and field physics
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of High Energy Physics
ISSN
1029-8479
e-ISSN
1029-8479
Volume of the periodical
2023
Issue of the periodical within the volume
6
Country of publishing house
DE - GERMANY
Number of pages
55
Pages from-to
19
UT code for WoS article
001035480600001
EID of the result in the Scopus database
2-s2.0-85161860997