6 Aralık 2024 Dergi makalesi Açık Erişim

CERN İşbirliği

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  <identifier identifierType="URL">https://aperta.ulakbim.gov.tr/record/274535</identifier>
  <creators>
    <creator>
      <creatorName>CERN İşbirliği</creatorName>
      <affiliation>CERN</affiliation>
    </creator>
  </creators>
  <titles>
    <title>Model-Independent Determination Of The Strong-Phase Difference Between ${D}^{0}$ And ${\Overline{D}}^{0}\To {\Pi }^{+}{\Pi }^{-}{\Pi }^{+}{\Pi }^{-}$ Decays</title>
  </titles>
  <publisher>Aperta</publisher>
  <publicationYear>2024</publicationYear>
  <dates>
    <date dateType="Issued">2024-12-06</date>
  </dates>
  <resourceType resourceTypeGeneral="Text">Journal article</resourceType>
  <alternateIdentifiers>
    <alternateIdentifier alternateIdentifierType="url">https://aperta.ulakbim.gov.tr/record/274535</alternateIdentifier>
  </alternateIdentifiers>
  <relatedIdentifiers>
    <relatedIdentifier relatedIdentifierType="DOI" relationType="IsIdenticalTo">10.1103/PhysRevD.110.112008</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;Measurements of the strong-phase difference between ${D}^{0}$ and ${\overline{D}}^{0}\to {\pi }^{+}{\pi }^{-}{\pi }^{+}{\pi }^{-}$ are performed in bins of phase space. The study exploits a sample of quantum-correlated $D\overline{D}$ mesons collected by the BESIII experiment in ${e}^{+}{e}^{-}$ collisions at a center-of-mass energy of 3.773 GeV, corresponding to an integrated luminosity of $2.93\text{}\text{}{\mathrm{fb}}^{-1}$. Here, $D$ denotes a neutral charm meson in a superposition of flavor eigenstates. The reported results are valuable for measurements of the $CP$-violating phase $\gamma $ (also denoted ${\varphi }_{3}$) in ${B}^{±}\to D{K}^{±}$, $D\to {\pi }^{+}{\pi }^{-}{\pi }^{+}{\pi }^{-}$ decays, and the binning schemes are designed to provide good statistical sensitivity to this parameter. The expected uncertainty on $\gamma $ arising from the precision of the strong-phase measurements, when applied to very large samples of $B$-meson decays, is around 1.5° or 2°, depending on the binning scheme. The binned strong-phase parameters are combined to give a value of ${F}_{+}^{4\pi }=0.746±0.010±0.004$ for the $CP$-even fraction of ${D}^{0}\to {\pi }^{+}{\pi }^{-}{\pi }^{+}{\pi }^{-}$ decays, which is around 30% more precise than the previous best measurement of this quantity.&lt;/p&gt;</description>
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