Determination of the spectroscopic parameters of beauty-partners of $T_{cc}$ from QCD

Abstract

Motivated by the recent discovery of a new tetra-quark $T_{cc}^{+}$ state with two charm quarks and two light quarks by LHCb collaboration, we calculate the spectroscopic parameters, namely, the mass and residues of beauty partners of $T_{cc}^{+}$ within QCD sum rules by using hadronic molecular $B{B}^{\ast }$ picture. The obtained results are compared with the predictions of different approaches in the literature.

References in corpus (20)

• 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 $Q_i{Q}_j{\bar{q}}_k{\bar{q}}_l$
• Masses of tetraquarks with two heavy quarks in the relativistic quark model
• QCD sum rules study of $QQ-\bar{u}\bar{d}$ mesons
• Lattice QCD investigation of a doubly-bottom $\bar{b}\bar{b}ud$ tetraquark with quantum numbers $I(J^P)=0(1^{+})$
• Doubly-heavy tetraquarks
• Masses of doubly heavy tetraquarks $T_{Q{Q}^{\prime }}$ in a relativized quark model
• Stable double-heavy tetraquarks: spectrum and structure
• Doubly Heavy Tetraquarks in QCD Sum Rules
• Masses of Doubly Heavy Tetraquarks with Error Bars
• $QQ\bar{q}\bar{q}$ in a chiral constituent quark model
• Double-heavy tetraquark states with heavy diquark-antiquark symmetry
• Hadronic molecule interpretation of $T_{cc}^{+}$ and its beauty-partners
• Spectroscopy, lifetime and decay modes of the $T_{bb}^{-}$ tetraquark
• Masses and magnetic moments of hadrons with one and two open heavy quarks: heavy baryons and tetraquarks
• The Doubly-heavy Tetraquarks ($q{q}^{\prime }\bar{Q}\overline{Q^{\prime }}$) in a Constituent Quark Model with a Complete Set of Harmonic Oscillator Bases
• Construction of $bb\bar{u}\bar{d}$ tetraquark states on lattice with NRQCD bottom and HISQ up/down quarks
• Radial excitations of heavy-light mesons from QCD sum rules
• Analytic calculation of doubly heavy hadron spectral density in coordinate space

Cited by in corpus (5)

• An updated review of the new hadron states
• Masses and Magnetic Moments of Doubly Heavy Tetraquarks via Diffusion Monte Carlo Method
• Exploring the magnetic dipole moments of $T_{QQ\bar{q}\bar{s}}$ and $T_{QQ\bar{s}\bar{s}}$ states in the framework of QCD light-cone sum rules
• Magnetic dipole moments of $B_{(s)}^{(\ast )}{B}_{(s)}^{(\ast )}$ states
• Investigating the Isospin Property of $T_{cc}^{+}$ from its Dalitz Plot Distribution