6 Aralık 2024 Dergi makalesi Açık Erişim

CERN İşbirliği

Dublin Core

<?xml version='1.0' encoding='utf-8'?>
<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>2024-12-06</dc:date>
  <dc:description>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.</dc:description>
  <dc:identifier>https://aperta.ulakbim.gov.trrecord/274535</dc:identifier>
  <dc:identifier>oai:aperta.ulakbim.gov.tr:274535</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>Model-independent determination of the strong-phase difference between ${D}^{0}$ and ${\overline{D}}^{0}\to {\pi }^{+}{\pi }^{-}{\pi }^{+}{\pi }^{-}$ decays</dc:title>
  <dc:type>info:eu-repo/semantics/article</dc:type>
  <dc:type>publication-article</dc:type>
</oai_dc:dc>