27 Ağustos 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>2024-08-27</dc:date>
  <dc:description>Using $\left(27.12±0.14\right)×{10}^{8}$ $\psi \left(3686\right)$ events collected with the BESIII detector, we present the first observation of the decays ${\chi }_{cJ}\to \Lambda \overline{\Lambda }\omega $, where $J=0$, 1, 2, with statistical significances of $11.7\sigma $, $11.2\sigma $, and $11.8\sigma $. The branching fractions of these decays are determined to be $B\left({\chi }_{c0}\to \Lambda \overline{\Lambda }\omega \right)=\phantom{\rule{0ex}{0ex}}\left(2.37±0.22±0.25\right)×{10}^{-4}$, $B\left({\chi }_{c1}\to \Lambda \overline{\Lambda }\omega \right)=\left(1.01±0.10±0.11\right)×{10}^{-4}$, and $B\left({\chi }_{c2}\to \Lambda \overline{\Lambda }\omega \right)=\phantom{\rule{0ex}{0ex}}\left(1.40±0.13±0.17\right)×{10}^{-4}$, where the first uncertainties are statistical and the second are systematic. We observe no clear intermediate structures.</dc:description>
  <dc:identifier>https://aperta.ulakbim.gov.trrecord/274757</dc:identifier>
  <dc:identifier>oai:aperta.ulakbim.gov.tr:274757</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(3)</dc:source>
  <dc:title>Study of the decays ${\chi }_{cJ}\to \Lambda \overline{\Lambda }\omega $</dc:title>
  <dc:type>info:eu-repo/semantics/article</dc:type>
  <dc:type>publication-article</dc:type>
</oai_dc:dc>