29 Ocak 2024 Dergi makalesi Açık Erişim

CERN İşbirliği

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  <identifier identifierType="URL">https://aperta.ulakbim.gov.tr/record/275289</identifier>
  <creators>
    <creator>
      <creatorName>CERN İşbirliği</creatorName>
      <affiliation>CERN</affiliation>
    </creator>
  </creators>
  <titles>
    <title>Search For The Light Hadron Decay ${\Chi }_{C1}\Left(3872\Right)\To {\Pi }^{+}{\Pi }^{-}\Eta $</title>
  </titles>
  <publisher>Aperta</publisher>
  <publicationYear>2024</publicationYear>
  <dates>
    <date dateType="Issued">2024-01-29</date>
  </dates>
  <resourceType resourceTypeGeneral="Text">Journal article</resourceType>
  <alternateIdentifiers>
    <alternateIdentifier alternateIdentifierType="url">https://aperta.ulakbim.gov.tr/record/275289</alternateIdentifier>
  </alternateIdentifiers>
  <relatedIdentifiers>
    <relatedIdentifier relatedIdentifierType="DOI" relationType="IsIdenticalTo">10.1103/PhysRevD.109.L011102</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;With a data sample corresponding to an integrated luminosity of $11.5\text{}\text{}{\mathrm{fb}}^{-1}$ collected with the BESIII detector operating at the BEPCII storage ring, for the first time the light hadron decay ${\chi }_{c1}\left(3872\right)\to {\pi }^{+}{\pi }^{-}\eta $ is searched for. While no significant signal is observed, the upper limits at the 90% confidence level for $\sigma \left[{e}^{+}{e}^{-}\to \gamma {\chi }_{c1}\left(3872\right)\right]B\left[{\chi }_{c1}\left(3872\right)\to {\pi }^{+}{\pi }^{-}\eta \right]$ at center of mass energies from 4.13 GeV to 4.34 GeV are determined. By normalizing to the ${\chi }_{c1}\left(3872\right)\to {\pi }^{+}{\pi }^{-}J/\psi $ decay channel, a 90% confidence level upper limit for the branching fraction ratio $R=B\left[{\chi }_{c1}\left(3872\right)\to {\pi }^{+}{\pi }^{-}\eta \right]/B\left[{\chi }_{c1}\left(3872\right)\to {\pi }^{+}{\pi }^{-}J/\psi \right]&amp;lt;0.12$ is given. These measurements provide important inputs for understanding the internal structure of the ${\chi }_{c1}\left(3872\right)$ resonance.&lt;/p&gt;</description>
  </descriptions>
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