The doubly charmed pseudoscalar tetraquarks $T_{cc;\bar{s}\bar{s}}^{++}$ and $T_{cc;\bar{d}\bar{s}}^{++}$

Abstract

The mass and coupling of the doubly charmed $J^P=0^{-}$ diquark-antidiquark states $T_{cc;\bar{s}\bar{s}}^{++}$ and $T_{cc;\bar{d}\bar{s}}^{++}$ that bear two units of the electric charge are calculated by means of QCD two-point sum rule method. Computations are carried out by taking into account vacuum condensates up to and including terms of tenth dimension. The dominant $S$-wave decays of these tetraquarks to a pair of conventional $D_s^{+}{D}_{s0}^{\ast +}(2317)$ and $D^{+}{D}_{s0}^{\ast +}(2317)$ mesons are explored using QCD three-point sum rule approach, and their widths are found. The obtained results $m_T=(4390\pm 150)\mathrm{MeV}$ and $\Gamma =(302\pm 113\mathrm{MeV}$) for the mass and width of the state $T_{cc;\bar{s}\bar{s}}^{++}$, as well as spectroscopic parameters ${\tilde{m}}_T=(4265\pm 140)\mathrm{MeV}$ and $\tilde{\Gamma }=(171\pm 52)\mathrm{MeV}$ of the tetraquark $T_{cc;\bar{d}\bar{s}}^{++}$ may be useful in experimental studies of exotic resonances.

10 Pages, 4 Figures and 1 Table

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Cited by in corpus (29)

• Pentaquark and Tetraquark states
• Analysis of the doubly-charmed tetraquark molecular states with the QCD sum rules
• Masses of doubly heavy tetraquarks $T_{Q{Q}^{\prime }}$ in a relativized quark model
• Discovery potentials of double-charm tetraquarks
• Newly observed exotic doubly charmed meson $T_{cc}^{+}$
• Magnetic dipole moments of the $T_{cc}^{+}$ and $Z_V^{++}$ tetraquark states
• Weak decays of the axial-vector tetraquark $T_{bb;\bar{u}\bar{d}}^{-}$
• New scalar resonance $X_0(2900)$ as a ${\overline{D}}^{\ast }{K}^{\ast }$ molecule: Mass and width
• Investigation of magnetic moment of $P_{cs}(4338)$ and $P_{cs}(4459)$ pentaquark states
• New charged resonance $Z_c^{-}(4100)$: the spectroscopic parameters and width
• Molecular Interpretation of $X(3960)$ as $D_s^{+}{D}_s^{-}$ State
• Magnetic dipole moment of the $Z_{cs}(3985)$ state: diquark-antidiquark and molecular pictures
• Investigating new type of doubly-charmed molecular tetraquarks composed of the charmed meson in $H$-doublet and the charmed meson in $T$-doublet
• Strong decays of double-charmed pseudoscalar and scalar $cc\overline{u}\overline{d}$ tetraquarks
• Heavy flavor molecular states with strangeness
• Electromagnetic properties of doubly heavy pentaquark states
• Vector resonance $X_1(2900)$ and its structure
• Heavy exotic scalar meson $T_{bb;\bar{u}\bar{s}}^{-}$
• Magnetic moments of the doubly charged axial-vector $T_{cc}^{++}$ states
• Semileptonic and nonleptonic decays of the axial-vector tetraquark $T_{bb;\overline{u}\overline{d}}^{-}$
• Weak Decays of Triply Heavy Tetraquarks $b\bar{c}b\bar{q}$
• Doubly-Charged $T_{cc}^{++}$ States in the Dynamical Diquark Model
• Is the resonance $X_0(2900)$ a ground-state or radially excited scalar tetraquark $[ud][\overline{c}\overline{s}]$?
• Magnetic moments of the vector hidden-charmed tetraquark states
• Axial-vector and pseudoscalar tetraquarks $[ud][\bar{c}\bar{s}]$
• Electromagnetic properties of the $D{\bar{D}}^{\ast }K$ molecular hexaquark state
• Threshold Effects in Heavy Quarkonium Spectroscopy and Decays
• Hadronic molecule model for the doubly charmed state $T_{cc}^{+}$
• Structural dissection of hadronic molecules: The $D^{(\ast )}{\bar{K}}^{(\ast )}$ family under QCD light-cone sum rules