2 Mayıs 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>2024-05-02</dc:date>
  <dc:description>Based on $\left(10087±44\right)×{10}^{6}\text{}\text{}J/\psi $ events collected with the BESIII detector, a partial wave analysis of the decay $J/\psi \to \gamma {K}_{S}^{0}{K}_{S}^{0}{\eta }^{\prime }$ is performed. The mass and width of the $X\left(2370\right)$ are measured to be $2395±11\left(\mathrm{stat}{\right)}_{-94}^{+26}\left(\mathrm{syst}\right)\text{}\text{}\mathrm{MeV}/{c}^{2}$ and ${188}_{-17}^{+18}\left(\mathrm{stat}{\right)}_{-33}^{+124}\left(\mathrm{syst}\right)\text{}\text{}\mathrm{MeV}$, respectively. The corresponding product branching fraction is $B\left[J/\psi \to \gamma X\left(2370\right)\right]×B\left[X\left(2370\right)\to {f}_{0}\left(980\right){\eta }^{\prime }\right]×B\left[{f}_{0}\left(980\right)\to {K}_{S}^{0}{K}_{S}^{0}\right]=\phantom{\rule{0ex}{0ex}}\left(1.31±0.22\left(\mathrm{stat}{\right)}_{-0.84}^{+2.85}\left(\mathrm{syst}\right)\right)×{10}^{-5}$. The statistical significance of the $X\left(2370\right)$ is greater than $11.7\sigma $ and the spin parity is determined to be ${0}^{-+}$ for the first time. The measured mass and spin parity of the $X\left(2370\right)$ are consistent with the predictions of the lightest pseudoscalar glueball.</dc:description>
  <dc:identifier>https://aperta.ulakbim.gov.trrecord/275097</dc:identifier>
  <dc:identifier>oai:aperta.ulakbim.gov.tr:275097</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 Letters 132(18)</dc:source>
  <dc:title>Determination of Spin-Parity Quantum Numbers of $X\left(2370\right)$ as ${0}^{-+}$ from $J/\psi \to \gamma {K}_{S}^{0}{K}_{S}^{0}{\eta }^{\prime }$</dc:title>
  <dc:type>info:eu-repo/semantics/article</dc:type>
  <dc:type>publication-article</dc:type>
</oai_dc:dc>