Measurement of the top-quark pole mass in dileptonic tt‾ + 1-jet events at √s=13 TeV with the ATLAS experiment

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F25%3A00644152" target="_blank" >RIV/68378271:_____/25:00644152 - isvavai.cz</a>
Alternative codes found
RIV/68407700:21220/25:00389058 RIV/68407700:21240/25:00389058 RIV/68407700:21340/25:00389058 RIV/68407700:21670/25:00389058 RIV/61989592:15310/25:73634920
Result on the web
<a href="https://hdl.handle.net/11104/0373927" target="_blank" >https://hdl.handle.net/11104/0373927</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/JHEP12(2025)023" target="_blank" >10.1007/JHEP12(2025)023</a>

Result language
angličtina
Original language name
Measurement of the top-quark pole mass in dileptonic tt‾ + 1-jet events at √s=13 TeV with the ATLAS experiment
Original language description
A measurement of the top-quark pole mass mtpole is presented in tt‾events with an additional jet, tt‾+ 1-jet, produced in pp collisions at √s =13 TeV. The data sample, recorded with the ATLAS experiment during Run 2 of the LHC, corresponds to an integrated luminosity of 140 fb−1. Events with one electron and one muon of opposite electric charge in the final state are selected to measure the tt‾ + 1-jet differential cross-section as a function of the inverse of the invariant mass of the tt‾ + 1-jet system. Iterative Bayesian Unfolding is used to correct the data to enable comparison with fixed-order calculations at next-to-leading-order accuracy in the strong coupling. The process pp→tt‾j(2→3), where top quarks are taken as stable particles, and the process pp→bb‾l+νl−ν‾j(2→7), which includes top-quark decays to the dilepton final state and off-shell effects, are considered. The top-quark mass is extracted using a χ2 fit of the unfolded normalized differential cross-section distribution.
Czech name
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Czech description
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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

Project
<a href="/en/project/EH22_008%2F0004632" target="_blank" >EH22_008/0004632: Fundamental constituents of matter through frontier technologies</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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