Search for light neutral particles decaying promptly into collimated pairs of electrons or muons in pp collisions at SQUARE ROOTs = 13 TeV 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%3A10511424" target="_blank" >RIV/00216208:11320/25:10511424 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=ib1.svN-mq" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=ib1.svN-mq</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1140/epjc/s10052-025-13916-5" target="_blank" >10.1140/epjc/s10052-025-13916-5</a>
Alternative languages
Result language
angličtina
Original language name
Search for light neutral particles decaying promptly into collimated pairs of electrons or muons in pp collisions at SQUARE ROOTs = 13 TeV with the ATLAS detector
Original language description
A search for a dark photon, a new light neutral particle,which decays promptly into collimated pairs of electronsor muons is presented. The search targets dark photonsresulting from the exotic decay of the StandardModel Higgsboson, assuming its production via the dominant gluon-gluonfusion mode. The analysis is based on 140 fb-1 of datacollected with the ATLAS detector at the Large HadronCollider from proton-proton collisions at a center-of-massenergy of 13 TeV. Events with collimated pairs of electronsor muons are analysed and background contributions are estimatedusing data-driven techniques. No significant excess inthe data above the Standard Model background is observed.Upper limits are set at 95% confidence level on the branchingratio of theHiggs boson decay into dark photons between0.001% and 5%, depending on the assumed dark photon mass and signal model.
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
—
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
3
Country of publishing house
DE - GERMANY
Number of pages
30
Pages from-to
335
UT code for WoS article
001522373300002
EID of the result in the Scopus database
2-s2.0-105001171987