{
  "id": "2001.11877",
  "version": "v1",
  "published": "2020-01-31T14:48:16.000Z",
  "updated": "2020-01-31T14:48:16.000Z",
  "title": "Impact of a thermal medium on $D$ mesons and their chiral partners",
  "authors": [
    "Glòria Montaña",
    "Àngels Ramos",
    "Laura Tolós",
    "Juan M. Torres-Rincon"
  ],
  "comment": "14 pages, 3 figures",
  "categories": [
    "hep-ph",
    "nucl-th"
  ],
  "abstract": "We study $D$ and $D_s$ mesons at finite temperature using an effective field theory based on chiral and heavy-quark spin-flavor symmetries within the imaginary-time formalism. Interactions with the light degrees of freedom are unitarized via a Bethe-Salpeter approach, and the $D$ and $D_s$ self-energies are calculated self-consistently. We generate dynamically the $D^*_0(2300)$ and $D_s(2317)$ states, and study their possible identification as the chiral partners of the $D$ and $D_s$ ground states, respectively. We show the evolution of their masses and decay widths as functions of temperature, and provide an analysis of the chiral-symmetry restoration in the heavy-flavor sector below the transition temperature. In particular, we analyse the very special case of the $D$-meson, for which the chiral partner is associated to the double-pole structure of the $D^*_0(2300)$.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2020-01-31T14:48:16.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "chiral partner",
      "thermal medium",
      "heavy-quark spin-flavor symmetries",
      "imaginary-time formalism",
      "finite temperature"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 14,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}