Search for short- and long-lived axion-like particles in H→aa→4γ decays with the ATLAS experiment 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%3A00598657" target="_blank" >RIV/68378271:_____/24:00598657 - isvavai.cz</a>
Alternative codes found
RIV/68407700:21220/24:00380896 RIV/68407700:21240/24:00380896 RIV/68407700:21340/24:00380896 RIV/68407700:21670/24:00380896 and 2 more
Result on the web
<a href="https://hdl.handle.net/11104/0356292" target="_blank" >https://hdl.handle.net/11104/0356292</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1140/epjc/s10052-024-12979-0" target="_blank" >10.1140/epjc/s10052-024-12979-0</a>
Alternative languages
Result language
angličtina
Original language name
Search for short- and long-lived axion-like particles in H→aa→4γ decays with the ATLAS experiment at the LHC
Original language description
Presented is the search for anomalous Higgs boson decays into two axion-like particles (ALPs) using the full Run 2 data set of 140 fb−1 of proton-proton collisions at a centre-of-mass energy of 13 TeV recorded by the ATLAS experiment. The ALPs are assumed to decay into two photons, providing sensitivity to recently proposed models that could explain the (g−2)μ discrepancy. This analysis covers an ALP mass range from 100 to 62 GeV and ALP-photon couplings in the range 10−7 TeV−1<Caγγ/Λ<1 TeV−1, and therefore includes signatures with significantly displaced vertices and highly collinear photons. No significant excess of events above the Standard Model background is observed. Upper limits at 95% confidence level are placed on the branching ratio of the Higgs boson to two ALPs in the four-photon final state, and are in the range of 10−5 to 3×10−2, depending on the hypothesized ALP mass and ALP-photon coupling strength.
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
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
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
31
Pages from-to
742
UT code for WoS article
001394632700001
EID of the result in the Scopus database
2-s2.0-85200026299