Charmed partner of the exotic $X(5568)$ state and its properties

Abstract

The mass, decay constant and width of a hypothetical charmed partner $X_c$ of the newly observed exotic $X_b(5568)$ state are calculated using a technique of QCD sum rule method. The $X_c=[su][\overline{c}\overline{d}]$ state with $J^P=0^{+}$ is described employing two types of the diquark-antidiquark interpolating currents. The evaluation of the mass $m_{X_c}$ and decay constant $f_{X_c}$ is carried out utilizing the two-point sum rule method by including vacuum condensates up to eight dimensions. The widths of the decay channels $X_c\to D_s^{-}{\pi }^{+}$ and $X_c\to D^0{K}^0$ are also found. To this end, the strong couplings $g_{X_c{D}_s\pi }$ and $g_{X_{c}DK}$ are computed by means of QCD sum rules on the light-cone and soft-meson approximation.

arXiv comment7 Pages, 2 Figures and 3 Tables

References in corpus (15)

• Glueballs, Hybrids, Multiquarks. Experimental facts versus QCD inspired concepts
• The New Heavy Mesons: A Status Report
• Charmonium
• New Charmonium States in QCD Sum Rules: a Concise Review
• The Exotic XYZ Charmonium-like Mesons
• Four-Quark Hadrons: an Updated Review
• B- and D-meson decay constants from three-flavor lattice QCD
• Strong $Z_c^{+}(3900)\to J/\psi {\pi }^{+};{\eta }_c{\rho }^{+}$ decays in QCD
• Mass and decay constant of the newly observed exotic $X(5568)$ state
• Exotic Heavy Quarkonium Spectroscopy: A Mini-review
• $X(5568)$ and and its partner states
• Width of the exotic $X_b(5568)$ state through its strong decay to $B_s^0{\pi }^{+}$
• Analysis of the $X(5568)$ as scalar tetraquark state in the diquark-antidiquark model with QCD sum rules
• A QCD sum rule study for a charged bottom-strange scalar meson
• Could the observation of $X(5568)$ be resulted by the near threshold rescattering effects?

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• In the Pursuit of $X(5568)$ and its Charmed Partner
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