Probing the CP nature of the top-Higgs Yukawa coupling in tt-H and tH events with H →bb- decays using the ATLAS detector at the LHC
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F24%3A00617216" target="_blank" >RIV/68378271:_____/24:00617216 - isvavai.cz</a>
Result on the web
<a href="https://hdl.handle.net/11104/0364435" target="_blank" >https://hdl.handle.net/11104/0364435</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.physletb.2024.138469" target="_blank" >10.1016/j.physletb.2024.138469</a>
Alternative languages
Result language
angličtina
Original language name
Probing the CP nature of the top-Higgs Yukawa coupling in tt-H and tH events with H →bb- decays using the ATLAS detector at the LHC
Original language description
The CP properties of the coupling between the Higgs boson and the top quark are investigated using 139 fb−1 of proton–proton collision data recorded by the ATLAS experiment at the LHCat a centre-of-mass energy of √s = 13 TeV. The CP structure of the top quark–Higgs boson Yukawa coupling is probed in events with a Higgs boson decaying into a pair of b-quarks and produced in association with either a pair of top quarks, t- th, or a single top quark, th Events containing one or two electrons or muons are used for the measurement. Multivariate techniques are used to select regions enriched in t- tH and tH events, where dedicated CP-sensitive observables are exploited. In an extension of the Standard Model (SM) with a CP-odd admixture in the top–Higgs Yukawa coupling, the mixing angle between CP-even and CP-odd couplings is measured to be α = 11◦+52◦−73◦ , compatible with the SM prediction corresponding to α = 0.
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
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Physics Letters. B
ISSN
0370-2693
e-ISSN
1873-2445
Volume of the periodical
849
Issue of the periodical within the volume
Feb
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
25
Pages from-to
138469
UT code for WoS article
001185312700001
EID of the result in the Scopus database
2-s2.0-85185283920