The doubly charmed strange tetraquark

Abstract

The LHCb experiment at CERN has discovered a doubly charmed isoscalar tetraquark $T_{cc}$ with the quantum numbers of $cc\bar{u}\bar{d}$ and mass of about 3875 MeV/$c^2$, decaying to $D^0{D}^0{\pi }^{+}$ through the intermediate channel $D^{\ast +}{D}^0$. We present a study of its strange companions with the quantum numbers of $cc\bar{q}\bar{s}$, where $q=u,d$ and isospin violation is neglected.

4 pages, 5 figures. Material added

References in corpus (5)

• Observation of the doubly charmed baryon ${\Xi }_{cc}^{++}$
• Observation of an exotic narrow doubly charmed tetraquark
• Discovery of doubly-charmed Xi_{cc} baryon implies a stable (b b ubar dbar) tetraquark
• Heavy-quark symmetry implies stable heavy tetraquark mesons $Q_i{Q}_j{\bar{q}}_k{\bar{q}}_l$
• Baryons with two heavy quarks: Masses, production, decays, and detection

Cited by in corpus (10)

• An updated review of the new hadron states
• $T_{cc}^{+}$ and its partners
• Doubly Heavy Tetraquarks in the Born-Oppenheimer approximation
• Magnetic moments of the doubly charged axial-vector $T_{cc}^{++}$ states
• Doubly Heavy Tetraquarks in the Chiral Quark Soliton Model
• Searching for doubly charmed tetraquark candidates $T_{cc}$ and $T_{cc\bar{s}}$ in $B_c$ decays
• Double-heavy tetraquarks with strangeness in the chiral quark model
• Lattice study of $cc\bar{u}\bar{s}$ tetraquark channel in $D^{(\ast )}{D}_s^{(\ast )}$ scattering
• Mass and decay width of $T_{ccs}$ from symmetries
• Coupled-channel scattering of $DD,D{D}^{\ast }$ and $D^{\ast }{D}^{\ast }$ in isospin-$1$ from lattice QCD