21 Ekim 2024 Dergi makalesi Açık Erişim

CERN İşbirliği

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<oai_dc:dc xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
  <dc:creator>CERN İşbirliği</dc:creator>
  <dc:date>2024-10-21</dc:date>
  <dc:description>Using $10.1\text{}\text{}{\mathrm{fb}}^{-1}$ of ${e}^{+}{e}^{-}$ collision data collected by the BESIII detector with center-of-mass energies between 4.15 GeV and 4.30 GeV, we search for the decays $X\left(3872\right)\to {\pi }^{0}{\pi }^{0}{\chi }_{c1,2}$, where the $X\left(3872\right)$ is produced in ${e}^{+}{e}^{-}\to \gamma X\left(3872\right)$. No evidence above $3\sigma $ is found for either decay. Upper limits at the 90% CL on the branching fractions of $X\left(3872\right)\to {\pi }^{0}{\pi }^{0}{\chi }_{c1,2}$ normalized to the branching fraction of $X\left(3872\right)\to {\pi }^{+}{\pi }^{-}J/\psi $ are set to be $B\left(X\left(3872\right)\to {\pi }^{0}{\pi }^{0}{\chi }_{c1}\right)/B\left(X\left(3872\right)\to {\pi }^{+}{\pi }^{-}J/\psi \right)&lt;1.1$ and $B\left(X\left(3872\right)\to {\pi }^{0}{\pi }^{0}{\chi }_{c2}\right)/B\left(X\left(3872\right)\to {\pi }^{+}{\pi }^{-}J/\psi \right)&lt;0.5$, taking into account both statistical and systematic uncertainties.</dc:description>
  <dc:identifier>https://aperta.ulakbim.gov.trrecord/274635</dc:identifier>
  <dc:identifier>oai:aperta.ulakbim.gov.tr:274635</dc:identifier>
  <dc:rights>info:eu-repo/semantics/openAccess</dc:rights>
  <dc:rights>http://www.opendefinition.org/licenses/cc-by</dc:rights>
  <dc:source>Physical Review D 110(7)</dc:source>
  <dc:title>Search for $X\left(3872\right)\to {\pi }^{0}{\pi }^{0}{\chi }_{c1,2}$</dc:title>
  <dc:type>info:eu-repo/semantics/article</dc:type>
  <dc:type>publication-article</dc:type>
</oai_dc:dc>