Search for Dark Matter Produced in Association with a Dark Higgs Boson in the b(b)over-bar Final State Using pp Collisions at root s=13 TeV with the ATLAS Detector

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F25%3A00388707" target="_blank" >RIV/68407700:21220/25:00388707 - isvavai.cz</a>
Alternative codes found
RIV/68407700:21240/25:00388707 RIV/68407700:21340/25:00388707 RIV/68407700:21670/25:00388707
Result on the web
<a href="https://doi.org/10.1103/PhysRevLett.134.121801" target="_blank" >https://doi.org/10.1103/PhysRevLett.134.121801</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevLett.134.121801" target="_blank" >10.1103/PhysRevLett.134.121801</a>

Result language
angličtina
Original language name
Search for Dark Matter Produced in Association with a Dark Higgs Boson in the b(b)over-bar Final State Using pp Collisions at root s=13 TeV with the ATLAS Detector
Original language description
A search is performed for dark matter particles produced in association with a resonantly produced pair of b-quarks with 30 < m(bb) < 150 GeV using 140 fb(-1) of proton-proton collisions at a center-of-mass energy of 13 TeV recorded by the ATLAS detector at the LHC. This signature is expected in extensions of the standard model predicting the production of dark matter particles, in particular those containing a dark Higgs boson s that decays into b (b) over bar. The highly boosted s -> b (b) over bar topology is reconstructed using jet reclustering and a new identification algorithm. This search places stringent constraints across regions of the dark Higgs model parameter space that satisfy the observed relic density, excluding dark Higgs bosons with masses between 30 and 150 GeV in benchmark scenarios with Z ' mediator masses up to 4.8 TeV at 95% confidence level.
Czech name
—
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
—
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
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>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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