Search for same-charge top-quark pair production in pp collisions at √s=13 TeV with the ATLAS detector

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F25%3A00619742" target="_blank" >RIV/68378271:_____/25:00619742 - isvavai.cz</a>
Alternative codes found
RIV/61989592:15310/25:73633358
Result on the web
<a href="https://hdl.handle.net/11104/0366396" target="_blank" >https://hdl.handle.net/11104/0366396</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/JHEP02(2025)084" target="_blank" >10.1007/JHEP02(2025)084</a>

Result language
angličtina
Original language name
Search for same-charge top-quark pair production in pp collisions at √s=13 TeV with the ATLAS detector
Original language description
A search for the production of top-quark pairs with the same electric charge (tt or tt‾) is presented. The analysis uses proton-proton collision data at √s = 13 TeV, recorded by the ATLAS detector at the Large Hadron Collider, corresponding to an integrated luminosity of 140 fb−1. Events with two same-charge leptons and at least two b-tagged jets are selected. Neural networks are employed to define two selections sensitive to additional couplings beyond the Standard Model that would enhance the production rate of same-sign top-quark pairs. No significant signal is observed, leading to an upper limit on the total production cross-section of same-sign top-quark pairs of 1.6 fb at 95% confidence level. Corresponding limits on the three Wilson coefficients associated with the Otu(1), OQu(1), and OQu(8) operators in the Standard Model Effective Field Theory framework are derived.
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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