24 Aralık 2024 Dergi makalesi Açık Erişim

CERN İşbirliği

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  <identifier identifierType="URL">https://aperta.ulakbim.gov.tr/record/274485</identifier>
  <creators>
    <creator>
      <creatorName>CERN İşbirliği</creatorName>
      <affiliation>CERN</affiliation>
    </creator>
  </creators>
  <titles>
    <title>Study Of The Decay $J/\Psi \To \Varphi {\Pi }^{0}\Eta $</title>
  </titles>
  <publisher>Aperta</publisher>
  <publicationYear>2024</publicationYear>
  <dates>
    <date dateType="Issued">2024-12-24</date>
  </dates>
  <resourceType resourceTypeGeneral="Text">Journal article</resourceType>
  <alternateIdentifiers>
    <alternateIdentifier alternateIdentifierType="url">https://aperta.ulakbim.gov.tr/record/274485</alternateIdentifier>
  </alternateIdentifiers>
  <relatedIdentifiers>
    <relatedIdentifier relatedIdentifierType="DOI" relationType="IsIdenticalTo">10.1103/PhysRevD.110.112014</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;Based on $\left(10.09±0.04\right)×{10}^{9}\text{}\text{}J/\psi $ events collected with the BESIII detector operating at the BEPCII collider, a partial wave analysis of the decay $J/\psi \to \varphi {\pi }^{0}\eta $ is performed. We observe for the first time two new structures on the $\varphi \eta $ invariant mass distribution, with significances exceeding $27\sigma $ and $13\sigma $; the first with ${J}^{\mathrm{PC}}={1}^{+-}$, mass $M=\left(1908±6\left(\mathrm{stat}\right){\text{}}_{-4}^{+8}\left(\mathrm{sys}\right)\right)\text{}\text{}\mathrm{MeV}/{c}^{2}$, and width $\Gamma =\left(175±13\left(\mathrm{stat}\right){\text{}}_{-16}^{+7}\left(\mathrm{sys}\right)\right)\text{}\text{}\mathrm{MeV}$, the second with ${J}^{\mathrm{PC}}={1}^{--}$, mass $M=\left(1992±12\left(\mathrm{stat}\right){\text{}}_{-6}^{+15}\left(\mathrm{sys}\right)\right)\text{}\text{}\mathrm{MeV}/{c}^{2}$, and width $\Gamma =\left(132±\phantom{\rule{0ex}{0ex}}22\left(\mathrm{stat}\right){\text{}}_{-4}^{+17}\left(\mathrm{sys}\right)\right)\text{}\text{}\mathrm{MeV}$. These measurements provide important input for the strangeonium spectrum. In addition, the ${f}_{0}\left(980\right)-{a}_{0}\left(980{\right)}^{0}$ mixing signal in $J/\psi \to \varphi {f}_{0}\left(980\right)\to \varphi {a}_{0}\left(980{\right)}^{0}$ and the corresponding electromagnetic decay $J/\psi \to \varphi {a}_{0}\left(980{\right)}^{0}$ are measured with improved precision, providing crucial information to understand the nature of ${a}_{0}\left(980{\right)}^{0}$ and ${f}_{0}\left(980\right)$.&lt;/p&gt;</description>
  </descriptions>
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