6 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>2024-08-06</dc:date>
  <dc:description>With the data samples taken at center-of-mass energies from 2.00 to 3.08 GeV with the BESIII detector at the BEPCII collider, a partial wave analysis on the ${e}^{+}{e}^{-}\to {\pi }^{+}{\pi }^{-}{\pi }^{0}$ process is performed. The Born cross sections for ${e}^{+}{e}^{-}\to {\pi }^{+}{\pi }^{-}{\pi }^{0}$ and its intermediate processes ${e}^{+}{e}^{-}\to \rho \pi $ and $\rho \left(1450\right)\pi $ are measured as functions of $\sqrt{s}$. The results for ${e}^{+}{e}^{-}\to {\pi }^{+}{\pi }^{-}{\pi }^{0}$ are consistent with previous results measured with the initial state radiation method within one standard deviation, and improve the uncertainty by a factor of ten. By fitting the line shapes of the Born cross sections for the ${e}^{+}{e}^{-}\to \rho \pi $ and ${e}^{+}{e}^{-}\to \rho \left(1450\right)\pi $, a structure with mass $M=2119±11±15\text{}\text{}\mathrm{MeV}/{c}^{2}$ and width $\Gamma =69±30±5\text{}\text{}\mathrm{MeV}$ is observed with a significance of $5.9\sigma $, where the first uncertainties are statistical and the second ones are systematic. This structure can be interpreted as an excited $\omega $ state.</dc:description>
  <dc:identifier>https://aperta.ulakbim.gov.trrecord/274829</dc:identifier>
  <dc:identifier>oai:aperta.ulakbim.gov.tr:274829</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 ${e}^{+}{e}^{-}\to {\pi }^{+}{\pi }^{-}{\pi }^{0}$ at $\sqrt{s}$ from 2.00 to 3.08 GeV at BESIII</dc:title>
  <dc:type>info:eu-repo/semantics/article</dc:type>
  <dc:type>publication-article</dc:type>
</oai_dc:dc>