30 Nisan 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>2024-04-30</dc:date>
  <dc:description>Based on $\left(2712.4±14.1\right)×{10}^{6}$ $\psi \left(3686\right)$ events collected with the BESIII detector, we study the decays ${h}_{c}\to 3\left({\pi }^{+}{\pi }^{-}\right){\pi }^{0}$, ${h}_{c}\to 2\left({\pi }^{+}{\pi }^{-}\right)\omega $, ${h}_{c}\to 2\left({\pi }^{+}{\pi }^{-}\right){\pi }^{0}\eta $, ${h}_{c}\to 2\left({\pi }^{+}{\pi }^{-}\right)\eta $, and ${h}_{c}\to p\overline{p}$ via $\psi \left(3686\right)\to \phantom{\rule{0ex}{0ex}}{\pi }^{0}{h}_{c}$. The decay channel ${h}_{c}\to 3\left({\pi }^{+}{\pi }^{-}\right){\pi }^{0}$ is observed for the first time, and its branching fraction is determined to be $\left(9.28±1.14±0.77\right)×{10}^{-3}$, where the first uncertainty is statistical and the second is systematic. In addition, first evidence is found for the modes ${h}_{c}\to 2\left({\pi }^{+}{\pi }^{-}\right){\pi }^{0}\eta $ and ${h}_{c}\to 2\left({\pi }^{+}{\pi }^{-}\right)\omega $ with significances of $4.8\sigma $ and $4.7\sigma $, and their branching fractions are determined to be $\left(7.55±1.51±0.77\right)×{10}^{-3}$ and $\left(4.00±0.86±0.35\right)×{10}^{-3}$, respectively. No significant signals of ${h}_{c}\to 2\left({\pi }^{+}{\pi }^{-}\right)\eta $ and ${h}_{c}\to p\overline{p}$ are observed, and the upper limits of the branching fractions of these decays are determined to be $&lt;6.19×{10}^{-4}$ and $&lt;4.40×{10}^{-5}$ at the 90% confidence level, respectively.</dc:description>
  <dc:identifier>https://aperta.ulakbim.gov.trrecord/275103</dc:identifier>
  <dc:identifier>oai:aperta.ulakbim.gov.tr:275103</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 109(7)</dc:source>
  <dc:title>Study of ${h}_{c}\to 3\left({\pi }^{+}{\pi }^{-}\right){\pi }^{0}$, ${h}_{c}\to 2\left({\pi }^{+}{\pi }^{-}\right)\omega $, ${h}_{c}\to 2\left({\pi }^{+}{\pi }^{-}\right){\pi }^{0}\eta $, ${h}_{c}\to 2\left({\pi }^{+}{\pi }^{-}\right)\eta $, and ${h}_{c}\to p\overline{p}$</dc:title>
  <dc:type>info:eu-repo/semantics/article</dc:type>
  <dc:type>publication-article</dc:type>
</oai_dc:dc>