1 Ocak 2019 Dergi makalesi Açık Erişim

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

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{
  "@context": "https://schema.org/", 
  "@id": 105553, 
  "@type": "ScholarlyArticle", 
  "creator": [
    {
      "@type": "Person", 
      "affiliation": "Department of Physics, University of Tehran, North Karegar Avenue, Tehran 14395-547, Iran", 
      "name": "Azizi, K."
    }, 
    {
      "@type": "Person", 
      "affiliation": "Department of Physics, Do\u01e7u\u015f University, Acibadem-Kadik\u00f6y, 34722 Istanbul, Turkey", 
      "name": "Barsbay, B."
    }, 
    {
      "@type": "Person", 
      "affiliation": "Department of Physics, Kocaeli University, 41380 Izmit, Turkey", 
      "name": "Sundu, H."
    }
  ], 
  "datePublished": "2019-01-01", 
  "description": "<p>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.</p>", 
  "headline": "Light scalar ${K}_{0}^{*}\\left(700\\right)$ meson in vacuum and a hot medium", 
  "identifier": 105553, 
  "image": "https://aperta.ulakbim.gov.tr/static/img/logo/aperta_logo_with_icon.svg", 
  "license": "http://www.opendefinition.org/licenses/cc-by", 
  "name": "Light scalar ${K}_{0}^{*}\\left(700\\right)$ meson in vacuum and a hot medium", 
  "url": "https://aperta.ulakbim.gov.tr/record/105553"
}