1 Ocak 2019 Dergi makalesi Açık Erişim

Yu, Q. X.; Liang, W. H.; Bayar, M.; Oset, E.

Citation Style Language JSON

{
  "DOI": "10.1103/PhysRevD.99.076002", 
  "abstract": "<p>We have performed a calculation of the $D\\overline{D}$, $D{\\overline{D}}^{*}$, ${D}^{*}\\overline{D}$, ${D}^{*}{\\overline{D}}^{*}$ components in the wave function of the $\\psi \\left(3770\\right)$. For this we make use of the ${}^{3}{P}_{0}$ model to find the coupling of $\\psi \\left(3770\\right)$ to these components, that with an elaborate angular momentum algebra can be obtained with only one parameter. Then we use data for the ${e}^{+}{e}^{-}\\to D\\overline{D}$ reaction, from where we determine a form factor needed in the theoretical framework, as well as other parameters needed to evaluate the meson-meson self-energy of the $\\psi \\left(3770\\right)$. Once this is done we determine the $Z$ probability to still have a vector core and the probability to have the different meson components. We find $Z$ about 80%\u201385%, and the individual meson-meson components are rather small, providing new empirical information to support the largely $q\\overline{q}$ component of vector mesons, and the $\\psi \\left(3770\\right)$ in particular. A discussion is done of the meaning of the terms obtained for the case of the open channels where the concept of probability cannot be strictly used.</p>", 
  "author": [
    {
      "family": "Yu", 
      "given": " Q.\u2009X."
    }, 
    {
      "family": "Liang", 
      "given": " W.\u2009H."
    }, 
    {
      "family": "Bayar", 
      "given": " M."
    }, 
    {
      "family": "Oset", 
      "given": " E."
    }
  ], 
  "container_title": "Physical Review D", 
  "id": "106021", 
  "issue": "7", 
  "issued": {
    "date-parts": [
      [
        2019, 
        1, 
        1
      ]
    ]
  }, 
  "title": "Line shape and ${D}^{\\left(*\\right)}{\\overline{D}}^{\\left(*\\right)}$ probabilities of $\\psi \\left(3770\\right)$ from the ${e}^{+}{e}^{-}\\to D\\overline{D}$ reaction", 
  "type": "article-journal", 
  "volume": "99"
}