Quark flavor violation and axion-like particles from top-quark decays at the LHC

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dc.article.number209
dc.catalogadoryvc
dc.contributor.authorCheung, Kingman
dc.contributor.authorChung, Fei-Tung
dc.contributor.authorCottin Buracchio, Giovanna Francesca
dc.contributor.authorWang, Zeren S.
dc.date.accessioned2024-08-01T23:12:22Z
dc.date.available2024-08-01T23:12:22Z
dc.date.issued2024
dc.date.updated2024-07-28T00:04:22Z
dc.description.abstractWe study axion-like particles (ALPs) with quark-flavor-violating couplings at the LHC. Specifically, we focus on the theoretical scenario with ALP-top-up and ALP-top-charm interactions, in addition to the more common quark-flavor-diagonal couplings. The ALPs can thus originate from decays of top quarks which are pair produced in large numbers at the LHC, and then decay to jets. If these couplings to the quarks are tiny and the ALPs have O 10 $$ \mathcal{O}(10) $$ GeV masses, they are long-lived, leading to signatures of displaced vertex plus multiple jets, which have the advantage of suppression of background events at the LHC. We recast a recent ATLAS search for the same signature and reinterpret the results in terms of bounds on the long-lived ALP in our theoretical scenario. We find that the LHC with the full Run 2 dataset can place stringent limits, while at the future high-luminosity LHC with 3 ab−1 integrated luminosity stronger sensitivities are expected.
dc.fechaingreso.objetodigital2024-07-28
dc.format.extent25 páginas
dc.fuente.origenBiomed Central
dc.identifier.citationJournal of High Energy Physics. 2024 Jul 23;2024(7):209
dc.identifier.urihttps://doi.org/10.1007/JHEP07(2024)209
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/87252
dc.information.autorucInstituto de Física; Cottin Buracchio, Giovanna Francesca; S/I; 162066
dc.language.isoen
dc.nota.accesocontenido completo
dc.publisherSISSA, Springer
dc.revistaJournal of High Energy Physics
dc.rightsacceso abierto
dc.rights.holderThe Author(s)
dc.rights.licenseCC BY Atribución 4.0 Internacional
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectAxions and ALPs
dc.subjectNew Light Particles
dc.subjectTop FCN
dc.subject.ddc520
dc.subject.deweyAstronomíaes_ES
dc.titleQuark flavor violation and axion-like particles from top-quark decays at the LHC
dc.typeartículo
dc.volumen2024
sipa.codpersvinculados162066
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