Improved reconstruction of highly boosted τ -lepton pairs in the τ τ → ( μ ν μ ν τ ) ( hadrons + ν τ ) decay channels with the ATLAS detector

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dc.catalogadorgrr
dc.contributor.author Aad, G.
dc.contributor.authorAakvaag, E.
dc.contributor.authorAbbott, B.
dc.contributor.author Abdelhameed, S.
dc.contributor.authorAbeling, K.
dc.contributor.author Abicht, N.J.
dc.contributor.author Abidi, S.H.
dc.contributor.author Aboelela, M.
dc.contributor.author Aboulhorma, A.
dc.contributor.author Abramowicz, H.
dc.contributor.author Abulaiti, Y.
dc.contributor.authorAcharya, B.S.
dc.contributor.author Ackermann, A.
dc.contributor.author Adam Bourdarios, C.
dc.contributor.authorAdamczyk, L.
dc.contributor.author Addepalli, S. V.
dc.contributor.authorAddison, M. J.
dc.contributor.authorDíaz, Marco A.
dc.contributor.authorGaray Walls, F.M.
dc.contributor.authorUrrejola, P.
dc.contributor.otherATLAS Collaboration
dc.date.accessioned2025-07-02T21:46:07Z
dc.date.available2025-07-02T21:46:07Z
dc.date.issued2025
dc.date.updated2025-07-01T17:35:49Z
dc.description.abstractThis paper presents a new τ -lepton reconstruction and identification procedure at the ATLAS detector at the Large Hadron Collider, which leads to significantly improved performance in the case of physics processes where a highly boosted pair of τ -leptons is produced and one τ -lepton decays into a muon and two neutrinos ( τ μ ), and the other decays into hadrons and one neutrino ( τ had ). By removing the muon information from the signals used for reconstruction and identification of the τ had candidate in the boosted pair, the efficiency is raised to the level expected for an isolated τ had . The new procedure is validated by selecting a sample of highly boosted Z → τ μ τ had candidates from the data sample of 140  fb - 1 of proton–proton collisions at 13 TeV recorded with the ATLAS detector. Good agreement is found between data and simulation predictions in both the Z → τ μ τ had signal region and in a background validation region. The results presented in this paper demonstrate the effectiveness of the τ had reconstruction with muon removal in enhancing the signal sensitivity of the boosted τ μ τ had channel at the ATLAS detector.
dc.fechaingreso.objetodigital2025-07-02
dc.format.extent32 páginas
dc.fuente.origenAutoarchivo
dc.identifier.doi10.1140/epjc/s10052-025-14012-4
dc.identifier.eissn1434-6052
dc.identifier.urihttps://doi.org/10.1140/epjc/s10052-025-14012-4
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/104833
dc.information.autorucInstituto de Física; Díaz, Marco A.; S/I; 104746
dc.issue.numero6
dc.language.isoen
dc.nota.accesocontenido completo
dc.pagina.inicio706
dc.revistaThe European Physical Journal C
dc.rightsacceso abierto
dc.rights.licenseCC BY 4.0 Attribution 4.0 International
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subject.ddc500
dc.subject.deweyCienciases_ES
dc.titleImproved reconstruction of highly boosted τ -lepton pairs in the τ τ → ( μ ν μ ν τ ) ( hadrons + ν τ ) decay channels with the ATLAS detector
dc.typeartículo
dc.volumen85
sipa.codpersvinculados104746
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