Search for light long-lived neutral particles from Higgs boson decays via vector-boson-fusion production from pp collisions at root s=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%2F68407700%3A21220%2F24%3A00380897" target="_blank" >RIV/68407700:21220/24:00380897 - isvavai.cz</a>
Alternative codes found
RIV/68407700:21240/24:00380897 RIV/68407700:21340/24:00380897 RIV/68407700:21670/24:00380897
Result on the web
<a href="https://doi.org/10.1140/epjc/s10052-024-12902-7" target="_blank" >https://doi.org/10.1140/epjc/s10052-024-12902-7</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1140/epjc/s10052-024-12902-7" target="_blank" >10.1140/epjc/s10052-024-12902-7</a>
Alternative languages
Result language
angličtina
Original language name
Search for light long-lived neutral particles from Higgs boson decays via vector-boson-fusion production from pp collisions at root s=13 TeV with the ATLAS detector
Original language description
A search is reported for long-lived dark photons with masses between 0.1 GeV and 15 GeV, from exotic decays of Higgs bosons produced via vector-boson-fusion. Events that contain displaced collimated Standard Model fermions reconstructed in the calorimeter or muon spectrometer are probed. This search uses the full LHC Run 2 (2015-2018) data sample collected in proton-proton collisions at root s = 13 TeV, corresponding to an integrated luminosity of 139 fb(-1). Dominant backgrounds from Standard Model processes and non-collision sources are estimated using data-driven techniques. The observed event yields in the signal regions are consistent with the expected background. Upper limits on the Higgs boson to dark photon branching fraction are reported as a function of the dark photon mean proper decay length or of the dark photon mass and the coupling between the Standard Model and the potential dark sector. This search is combined with previous ATLAS searches obtained in the gluon-gluon fusion and WH production modes. A branching fraction above 10% is excluded at 95% CL for a 125 GeV Higgs boson decaying into two dark photons for dark photon mean proper decay lengths between 173 and 1296 mm and mass of 10 GeV.
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
<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)
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
European Physical Journal C
ISSN
1434-6044
e-ISSN
1434-6052
Volume of the periodical
84
Issue of the periodical within the volume
7
Country of publishing house
DE - GERMANY
Number of pages
29
Pages from-to
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UT code for WoS article
001394632700002
EID of the result in the Scopus database
2-s2.0-85207061431