1 Ocak 2019 Dergi makalesi Açık Erişim

Azizi, K.; Barsbay, B.; Sundu, H.

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  <identifier identifierType="URL">https://aperta.ulakbim.gov.tr/record/105553</identifier>
  <creators>
    <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>Barsbay, B.</creatorName>
      <givenName>B.</givenName>
      <familyName>Barsbay</familyName>
      <affiliation>Department of Physics, Doǧuş University, Acibadem-Kadiköy, 34722 Istanbul, Turkey</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>Light Scalar ${K}_{0}^{*}\Left(700\Right)$ Meson In Vacuum And A Hot Medium</title>
  </titles>
  <publisher>Aperta</publisher>
  <publicationYear>2019</publicationYear>
  <dates>
    <date dateType="Issued">2019-01-01</date>
  </dates>
  <resourceType resourceTypeGeneral="Text">Journal article</resourceType>
  <alternateIdentifiers>
    <alternateIdentifier alternateIdentifierType="url">https://aperta.ulakbim.gov.tr/record/105553</alternateIdentifier>
  </alternateIdentifiers>
  <relatedIdentifiers>
    <relatedIdentifier relatedIdentifierType="DOI" relationType="IsIdenticalTo">10.1103/PhysRevD.100.094041</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;The ${K}_{0}^{*}\left(700\right)$ meson appears as the lightest strange scalar meson in Particle Data Group (PDG). Although there were a lot of experimental and theoretical efforts to establish this particle and determine its properties and nature, it still needs confirmation in an experiment, and its internal quark-gluon organization needs to be clarified. In this connection, we study some spectroscopic properties of this state in a hot medium as well as a vacuum by modeling it as a usual meson of a quark and an antiquark. In particular, we investigate its mass and coupling or decay constant in terms of the temperature of a hot medium by including the medium effects by the fermionic and gluonic parts of the energy-momentum tensor as well as the temperature-dependent continuum threshold, quark, gluon, and mixed condensates. We observe that the mass of ${K}_{0}^{*}\left(700\right)$ remains unchanged up to $T\simeq 0.6{T}_{c}$ with ${T}_{c}$ being the critical temperature, but it starts to diminish after this point and approaches zero near to the critical temperature referring to the melting of the meson. The coupling of ${K}_{0}^{*}\left(700\right)$ is also sensitive to $T$ at higher temperatures. It starts to grow rapidly after $T\simeq 0.85{T}_{c}$. We turn off the medium effects and calculate the mass and coupling of the ${K}_{0}^{*}\left(700\right)$ state at zero temperature. The obtained mass is in accord with the average Breit-Wigner mass value reported by PDG.&lt;/p&gt;</description>
  </descriptions>
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