1 Ocak 2022 Dergi makalesi Açık Erişim

Agaev, S. S.; Azizi, K.; Sundu, H.

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  <identifier identifierType="URL">https://aperta.ulakbim.gov.tr/record/262599</identifier>
  <creators>
    <creator>
      <creatorName>Agaev, S. S.</creatorName>
      <givenName>S. S.</givenName>
      <familyName>Agaev</familyName>
      <affiliation>Institute for Physical Problems, Baku State University, Az–1148 Baku, Azerbaijan</affiliation>
    </creator>
    <creator>
      <creatorName>Azizi, K.</creatorName>
      <givenName>K.</givenName>
      <familyName>Azizi</familyName>
      <affiliation>Department of Physics, University of Tehran, North Karegar Avenue, Tehran 14395-547, Iran</affiliation>
    </creator>
    <creator>
      <creatorName>Sundu, H.</creatorName>
      <givenName>H.</givenName>
      <familyName>Sundu</familyName>
      <affiliation>Department of Physics, Kocaeli University, 41380 Izmit, Turkey</affiliation>
    </creator>
  </creators>
  <titles>
    <title>Resonance $X\Left(4630\Right)$</title>
  </titles>
  <publisher>Aperta</publisher>
  <publicationYear>2022</publicationYear>
  <dates>
    <date dateType="Issued">2022-01-01</date>
  </dates>
  <resourceType resourceTypeGeneral="Text">Journal article</resourceType>
  <alternateIdentifiers>
    <alternateIdentifier alternateIdentifierType="url">https://aperta.ulakbim.gov.tr/record/262599</alternateIdentifier>
  </alternateIdentifiers>
  <relatedIdentifiers>
    <relatedIdentifier relatedIdentifierType="DOI" relationType="IsIdenticalTo">10.1103/PhysRevD.106.014025</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>
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  <descriptions>
    <description descriptionType="Abstract">&lt;p&gt;We investigate the structure $X\left(4630\right)$ discovered by the LHCb Collaboration in the process ${B}^{+}\to J/\psi \varphi {K}^{+}$ as a resonance in the $J/\psi \varphi $ mass distribution. We explore this resonance as a diquark-antidiquark state $X=\left[cs\right]\left[\overline{c}\overline{s}\right]$ with spin-parities ${J}^{\mathrm{PC}}={1}^{-+}$. Its mass and current coupling are calculated using the QCD two-point sum rule method by taking into account vacuum condensates up to dimension 10. We also study decays of this tetraquark to mesons $J/\psi \varphi $, ${\eta }_{c}{\eta }^{\left(\prime \right)}$ and ${\chi }_{c1}{\eta }^{\left(\prime \right)}$, and compute partial widths of these channels. To this end, we employ the light-cone sum rule approach and technical methods of soft-meson approximation to extract strong coupling at relevant tetraquark-meson-meson vertices. Our predictions for the mass $m=\left(4632±60\right)\text{}\text{}\mathrm{MeV}$ and width $\Gamma =\left(159±31\right)\text{}\text{}\mathrm{MeV}$ of $X$ are in a very nice agreement with recent measurements of the LHCb Collaboration. These results allow us to interpret the resonance $X\left(4630\right)$ as the tetraquark $X$ with spin-parities ${J}^{\mathrm{PC}}={1}^{-+}$.&lt;/p&gt;</description>
  </descriptions>
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