• Medientyp: E-Artikel
  • Titel: X(3915) as a tensor D∗D¯∗ molecule
  • Beteiligte: Baru, V.; Hanhart, C.; Nefediev, A. V.
  • Erschienen: EDP Sciences, 2019
  • Erschienen in: EPJ Web of Conferences
  • Sprache: Nicht zu entscheiden
  • DOI: 10.1051/epjconf/201921808004
  • ISSN: 2100-014X
  • Schlagwörter: General Earth and Planetary Sciences ; General Engineering ; General Environmental Science
  • Entstehung:
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  • Beschreibung: <jats:p>Two-photon decays of a tensor <jats:italic>D</jats:italic><jats:sup>∗</jats:sup><jats:italic>D</jats:italic>¯<jats:sup>∗</jats:sup> molecule are studied and the suggested approach is applied to the <jats:italic>X</jats:italic>(3915) charmonium-like state under the assumption of the latter being a 2<jats:sup>++</jats:sup> molecule — a spin partner of the <jats:italic>X</jats:italic>(3872). It is argued that the existing experimental data disfavour such an identification of this state. Therefore, it is suggested that either the <jats:italic>X</jats:italic>(3915) has a different exotic nature or it has to be identified as a scalar.</jats:p>
  • Zugangsstatus: Freier Zugang