Search for a new pseudoscalar decaying into a pair of bottom and antibottom quarks in top-associated production in SQUARE ROOTs = 13 TeV proton-proton collisions with the ATLAS detector
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F25%3A10511452" target="_blank" >RIV/00216208:11320/25:10511452 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=oBsBSDb8Qi" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=oBsBSDb8Qi</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1140/epjc/s10052-025-14507-0" target="_blank" >10.1140/epjc/s10052-025-14507-0</a>
Alternative languages
Result language
angličtina
Original language name
Search for a new pseudoscalar decaying into a pair of bottom and antibottom quarks in top-associated production in SQUARE ROOTs = 13 TeV proton-proton collisions with the ATLAS detector
Original language description
A search for a pseudoscalar a produced in association with a top-quark pair, or in association with a singletop quark plus a W boson, with the pseudoscalar decayinginto b-quarks (a RIGHTWARDS ARROW b-b), is performed using the full Run 2data sample using a dileptonic decay mode signature. Thesearch covers pseudoscalar boson masses between 12 and100 GeV and involves both the kinematic regime where thedecay products of the pseudoscalar are reconstructed as twostandard b-tagged small-radius jets, or merged into a largeradiusjet due to its Lorentz boost. No significant excess relativeto expectations is observed. Assuming a branching ratioBR(a RIGHTWARDS ARROW b-b ) = 100%, the range of pseudoscalar massesbetween 50 and 80 GeV is excluded at 95% confidence levelfor a coupling of the pseudoscalar to the top quark of 0.5,while a coupling of 1.0 is excluded at 95% confidence levelfor the masses considered, with the coupling defined as the strength modifier of the Standard Model Yukawa coupling.
Czech name
—
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
10300 - Physical sciences
Result continuities
Project
<a href="/en/project/EH22_008%2F0004632" target="_blank" >EH22_008/0004632: Fundamental constituents of matter through frontier technologies</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
European Physical Journal C
ISSN
1434-6044
e-ISSN
1434-6052
Volume of the periodical
85
Issue of the periodical within the volume
8
Country of publishing house
DE - GERMANY
Number of pages
36
Pages from-to
886
UT code for WoS article
001573308300001
EID of the result in the Scopus database
2-s2.0-105016097909