25 Temmuz 2024 Dergi makalesi Açık Erişim

CERN İşbirliği

DataCite XML

<?xml version='1.0' encoding='utf-8'?>
<resource xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://datacite.org/schema/kernel-4" xsi:schemaLocation="http://datacite.org/schema/kernel-4 http://schema.datacite.org/meta/kernel-4.1/metadata.xsd">
  <identifier identifierType="URL">https://aperta.ulakbim.gov.tr/record/274863</identifier>
  <creators>
    <creator>
      <creatorName>CERN İşbirliği</creatorName>
      <affiliation>CERN</affiliation>
    </creator>
  </creators>
  <titles>
    <title>Search For Charged-Lepton-Flavor Violating $\Mu \Tau Qt$ Interactions In Top-Quark Production And Decay In $Pp$ Collisions At $\Sqrt{S}=13\Text{}\Text{}\Mathrm{Tev}$ With The Atlas Detector At The Lhc</title>
  </titles>
  <publisher>Aperta</publisher>
  <publicationYear>2024</publicationYear>
  <dates>
    <date dateType="Issued">2024-07-25</date>
  </dates>
  <resourceType resourceTypeGeneral="Text">Journal article</resourceType>
  <alternateIdentifiers>
    <alternateIdentifier alternateIdentifierType="url">https://aperta.ulakbim.gov.tr/record/274863</alternateIdentifier>
  </alternateIdentifiers>
  <relatedIdentifiers>
    <relatedIdentifier relatedIdentifierType="DOI" relationType="IsIdenticalTo">10.1103/PhysRevD.110.012014</relatedIdentifier>
  </relatedIdentifiers>
  <rightsList>
    <rights rightsURI="http://www.opendefinition.org/licenses/cc-by">Creative Commons Attribution</rights>
    <rights rightsURI="info:eu-repo/semantics/openAccess">Open Access</rights>
  </rightsList>
  <descriptions>
    <description descriptionType="Abstract">&lt;p&gt;A search for charged-lepton-flavor violating $\mu \tau qt$ ($q=u$, $c$) interactions is presented, considering both top-quark production and decay. The data analyzed correspond to $140\text{}\text{}{\mathrm{fb}}^{-1}$ of proton-proton collisions at a center-of-mass energy of $\sqrt{s}=13\text{}\text{}\mathrm{TeV}$ recorded with the ATLAS detector at the Large Hadron Collider. The analysis targets events containing two muons with the same electric charge, a hadronically decaying $\tau $-lepton and at least one jet, with exactly one $b$-tagged jet, produced by a $\mu \tau qt$ interaction. Agreement with the Standard Model expectation within 1.6 standard deviations is observed, and limits are set at the 95% confidence level (CL) on the charged-lepton-flavor violation branching ratio of $B\left(t\to \mu \tau q\right)&amp;lt;8.7×{10}^{-7}$. An effective field theory interpretation is performed yielding 95% CL limits on Wilson coefficients, dependent on the flavor of the associated light quark and the Lorentz structure of the coupling. These range from $|{c}_{\mathrm{lequ}}^{3\left(2313\right)}|/{\Lambda }^{2}&amp;lt;0.10\text{}\text{}{\mathrm{TeV}}^{-2}$ for $\mu \tau ut$ to $|{c}_{\mathrm{lequ}}^{1\left(2323\right)}|/{\Lambda }^{2}&amp;lt;1.8\text{}\text{}{\mathrm{TeV}}^{-2}$ for $\mu \tau ct$. An additional interpretation is performed for scalar leptoquark production inducing charged-lepton-flavor violation, with fixed intergenerational couplings. Upper limits on leptoquark coupling strengths are set at the 95% CL, ranging from ${\lambda }^{\mathrm{LQ}}=1.3$ to ${\lambda }^{\mathrm{LQ}}=3.7$ for leptoquark masses between 0.5 and 2.0 TeV.&lt;/p&gt;</description>
  </descriptions>
</resource>