Mass and decay width of $T_{ccs}$ from symmetries

Abstract

We analyze the mass and width of the doubly heavy tetraquark $T_{ccs}$ composed of a heavy diquark and a light-quark cloud with strangeness with assuming that a color antitriplet heavy diquark is a dominant component of the doubly charmed tetraquarks $T_{cc}$ and $T_{ccs}$. We construct an effective Lagrangian for masses of heavy hadrons based on the superflavor symmetry between the doubly heavy tetraquarks and the singly heavy baryons by including the terms that simultaneously break the heavy-quark and light-flavor symmetries, and predict the mass of $T_{ccs}$ as $M(T_{ccs})=4047\pm 11$\,MeV. The comparison of this prediction with future experimental observation will give a clue to understand the color structure of the heavy diquark. We also predict the mass of ${\Omega }_{cc}$ as $M({\Omega }_{cc})=3706_{-15}^{+14}$MeV. We next calculate the decay width of $T_{ccs}$, based on solely the light-flavor symmetry, as $\Gamma (T_{ccs})=42\pm 24$\,MeV.

References in corpus (20)

• An updated review of the new hadron states
• Heavy Baryons in a Quark Model
• Heavy-quark symmetry implies stable heavy tetraquark mesons $Q_i{Q}_j{\bar{q}}_k{\bar{q}}_l$
• Charmed bottom baryon spectroscopy from lattice QCD
• Chiral perturbation theory for heavy hadrons and chiral effective field theory for heavy hadronic molecules
• QCD sum rules study of $QQ-\bar{u}\bar{d}$ mesons
• Signature of a doubly charm tetraquark pole in $D{D}^{\ast }$ scattering on the lattice
• Exotic $QQ\bar{q}\bar{q}$, $QQ\bar{q}\bar{s}$ and $QQ\bar{s}\bar{s}$ states
• Mass spectra and radiative transitions of doubly heavy baryons in a relativized quark model
• Doubly Charmed Tetraquark $T_{cc}^{+}$ from Lattice QCD near Physical Point
• Bottom baryons from a dynamical lattice QCD simulation
• Masses and radiative decay widths of S- and P-wave singly-, doubly- and triply-heavy charm and bottom baryons
• Revisiting the $D{D}^{\ast }$ chiral interactions with the local momentum-space regularization up to the third order and the nature of $T_{cc}^{+}$
• Doubly heavy tetraquarks in a chiral-diquark picture
• $S$-wave fully charmed tetraquark resonant states
• Double-charm tetraquark under the complex scaling method
• Analysis of the $X(3960)$ and related tetraquark molecular states via the QCD sum rules
• Search for $\bar{b}\bar{b}us$ and $\bar{b}\bar{c}ud$ tetraquark bound states using lattice QCD
• A new group of doubly charmed molecule with $T$-doublet charmed meson pair
• Analysis of $T_{cc}$ and $T_{bb}$ based on the hadronic molecular model and their spin multiplets

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• Analysis of bound and resonant states of doubly heavy tetraquarks with spin $J\le 2$
• A coupled-channel perspective analysis on bottom-strange molecular pentaquarks