26 Aralık 2024 Dergi makalesi Açık Erişim

CERN İşbirliği

DataCite XML

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  <identifier identifierType="URL">https://aperta.ulakbim.gov.tr/record/274481</identifier>
  <creators>
    <creator>
      <creatorName>CERN İşbirliği</creatorName>
      <affiliation>CERN</affiliation>
    </creator>
  </creators>
  <titles>
    <title>Observation Of $D\To {A}_{0}\Left(980\Right)\Pi $ In The Decays ${D}^{0}\To {\Pi }^{+}{\Pi }^{-}\Eta $ And ${D}^{+}\To {\Pi }^{+}{\Pi }^{0}\Eta $</title>
  </titles>
  <publisher>Aperta</publisher>
  <publicationYear>2024</publicationYear>
  <dates>
    <date dateType="Issued">2024-12-26</date>
  </dates>
  <resourceType resourceTypeGeneral="Text">Journal article</resourceType>
  <alternateIdentifiers>
    <alternateIdentifier alternateIdentifierType="url">https://aperta.ulakbim.gov.tr/record/274481</alternateIdentifier>
  </alternateIdentifiers>
  <relatedIdentifiers>
    <relatedIdentifier relatedIdentifierType="DOI" relationType="IsIdenticalTo">10.1103/PhysRevD.110.L111102</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;We report the first amplitude analyses of the decays ${D}^{0}\to {\pi }^{+}{\pi }^{-}\eta $ and ${D}^{+}\to {\pi }^{+}{\pi }^{0}\eta $ using a data sample taken with the BESIII detector at the center-of-mass energy of 3773 MeV, corresponding to an integrated luminosity of $7.9\text{}\text{}{\mathrm{fb}}^{-1}$. The contribution from the process ${D}^{0\left(+\right)}\to {a}_{0}\left(980{\right)}^{+}{\pi }^{-\left(0\right)}$ is significantly larger than the ${D}^{0\left(+\right)}\to {a}_{0}\left(980{\right)}^{-\left(0\right)}{\pi }^{+}$ contribution. The ratios $B\left({D}^{0}\to {a}_{0}\left(980{\right)}^{+}{\pi }^{-}\right)/B\left({D}^{0}\to {a}_{0}\left(980{\right)}^{-}{\pi }^{+}\right)$ and $B\left({D}^{+}\to {a}_{0}\left(980{\right)}^{+}{\pi }^{0}\right)/B\left({D}^{+}\to {a}_{0}\left(980{\right)}^{0}{\pi }^{+}\right)$ are measured to be ${7.5}_{-0.8\mathrm{stat}}^{+2.5}±{1.7}_{\mathrm{syst}}$ and $2.6±{0.6}_{\mathrm{stat}}±\phantom{\rule{0ex}{0ex}}{0.3}_{\mathrm{syst}}$, respectively. The measured ${D}^{0}$ ratio disagrees with the theoretical predictions by orders of magnitudes, thus implying a substantial contribution from final-state interactions.&lt;/p&gt;</description>
  </descriptions>
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