2 Aralık 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>2024-12-02</dc:date>
  <dc:description>By analyzing ${e}^{+}{e}^{-}$ annihilation data corresponding to an integrated luminosity of $7.93\text{}\text{}{\mathrm{fb}}^{-1}$, collected at the center-of-mass energy of 3.773 GeV with the BESIII detector, we search for the semileptonic decays ${D}^{0}\to {K}^{-}\eta {e}^{+}{\nu }_{e}$, ${D}^{+}\to {K}_{S}^{0}\eta {e}^{+}{\nu }_{e}$ and ${D}^{+}\to \eta \eta {e}^{+}{\nu }_{e}$ for the first time. We present evidence for ${D}^{0}\to {K}^{-}\eta {e}^{+}{\nu }_{e}$ with a significance of $3.3\sigma $. The branching fraction of ${D}^{0}\to {K}^{-}\eta {e}^{+}{\nu }_{e}$ is measured to be $\left(0.8{4}_{-0.34}^{+0.29}±0.22\right)×{10}^{-4}$. No significant signals are observed for the decays ${D}^{+}\to {K}_{S}^{0}\eta {e}^{+}{\nu }_{e}$ and ${D}^{+}\to \eta \eta {e}^{+}{\nu }_{e}$ and we set the upper limits on their branching fractions.</dc:description>
  <dc:identifier>https://aperta.ulakbim.gov.trrecord/274549</dc:identifier>
  <dc:identifier>oai:aperta.ulakbim.gov.tr:274549</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(11)</dc:source>
  <dc:title>Search for ${D}^{0}\to {K}^{-}\eta {e}^{+}{\nu }_{e}$, ${D}^{+}\to {K}_{S}^{0}\eta {e}^{+}{\nu }_{e}$ and ${D}^{+}\to \eta \eta {e}^{+}{\nu }_{e}$ decays</dc:title>
  <dc:type>info:eu-repo/semantics/article</dc:type>
  <dc:type>publication-article</dc:type>
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