1 Ocak 2023 Dergi makalesi Açık Erişim

CERN İşbirliği

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  <identifier identifierType="URL">https://aperta.ulakbim.gov.tr/record/264890</identifier>
  <creators>
    <creator>
      <creatorName>CERN İşbirliği</creatorName>
      <affiliation>CERN</affiliation>
    </creator>
  </creators>
  <titles>
    <title>Search For An Axion-Like Particle In Radiative / Decays</title>
  </titles>
  <publisher>Aperta</publisher>
  <publicationYear>2023</publicationYear>
  <dates>
    <date dateType="Issued">2023-01-01</date>
  </dates>
  <resourceType resourceTypeGeneral="Text">Journal article</resourceType>
  <alternateIdentifiers>
    <alternateIdentifier alternateIdentifierType="url">https://aperta.ulakbim.gov.tr/record/264890</alternateIdentifier>
  </alternateIdentifiers>
  <relatedIdentifiers>
    <relatedIdentifier relatedIdentifierType="DOI" relationType="IsIdenticalTo">10.1016/j.physletb.2023.137698</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>
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  <descriptions>
    <description descriptionType="Abstract">&lt;p&gt;We search for an axion-like particle (ALP) a through the process $\psi \left(3686\right)\to {\pi }^{+}{\pi }^{-}J/\psi $, $J/\psi \to \gamma a$, $a\to \gamma \gamma $ in a data sample of $\left(2.71±0.01\right)×{10}^{9}$ $\psi \left(3686\right)$ events collected by the BESIII detector. No significant ALP signal is observed over the expected background, and the upper limits on the branching fraction of the decay $J/\psi \to \gamma a$ and the ALP-photon coupling constant ${g}_{a\gamma \gamma }$ are set at 95% confidence level in the mass range of $0.165\le {m}_{a}\le 2.84\phantom{\rule{0.25em}{0ex}}\text{GeV}/{c}^{2}$. The limits on $B\left(J/\psi \to \gamma a\right)$ range from $8.3×{10}^{-8}$ to $1.8×{10}^{-6}$ over the search region, and the constraints on the ALP-photon coupling are the most stringent to date for $0.165\le {m}_{a}\le 1.468\phantom{\rule{0.25em}{0ex}}\text{GeV}/{c}^{2}$.&lt;/p&gt;</description>
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