Masses of doubly heavy tetraquarks $QQ\bar{n}\bar{q}$ with $J^P=1^{+}$

Abstract

We apply the method of QCD sum rules to study the doubly heavy tetraquark states $QQ\bar{q}\bar{n}$ with spin-parity $J^P=1^{+}$ and strangeness $S=0,-1$ using careful estimates of the Borel and threshold parameters involved. Masses of the doubly bottom and charmed tetraquarks with isospin $I=0,1/2,1$ are computed precisely via taking into account multifarious condensates up to dimension $10$. Comparing with the two-heavy meson thresholds, we find that all nonstrange doubly-bottom tetraquarks and a doubly-charmed tetraquarks associted with $J_3$ with $J^P=1^{+}$ are stable against strong decay into two bottom mesons while a doubly-charmed tetraquarks associated with current $J_2$ is unstable against strong decay. By the way, weak decay widths of the doubly bottom tetraquarks are also given.

arXiv comment26 pages, 9 figures. This version of the article is created by revtex4, the title error in J^P corrected, some notations and descriptions improved, 32 refs. and 2 long appendiices added

References in corpus (38)

• Observation of two charged bottomonium-like resonances in Y(5S) decays
• Observation of structure in the $J/\psi$-pair mass spectrum
• New Charmonium States in QCD Sum Rules: a Concise Review
• Discovery of doubly-charmed Xi_{cc} baryon implies a stable (b b ubar dbar) tetraquark
• Heavy-quark symmetry implies stable heavy tetraquark mesons $Q_i{Q}_j{\bar{q}}_k{\bar{q}}_l$
• Mass spectra of doubly heavy baryons in the relativistic quark model
• Exotic QQ\qbar\qbar States in QCD
• Baryons with two heavy quarks: Masses, production, decays, and detection
• Can the X(3872) be a 1^{++} four-quark state?
• Lattice Prediction for Deeply Bound Doubly Heavy Tetraquarks
• Study of doubly heavy tetraquarks in Lattice QCD
• Exotic tetraquark states with the $qq\bar{Q}\bar{Q}$ configuration
• Exotic $QQ\bar{q}\bar{q}$, $QQ\bar{q}\bar{s}$ and $QQ\bar{s}\bar{s}$ states
• A $bb\bar{b}\bar{b}$ di-bottomonium at the LHC?
• Evidence for the existence of $ud\bar{b}\bar{b}$ and the non-existence of $ss\bar{b}\bar{b}$ and $cc\bar{b}\bar{b}$ tetraquarks from lattice QCD
• The Search for Beauty-fully Bound Tetraquarks Using Lattice Non-Relativistic QCD
• Could $Z_b(10610)$ be a $B^{\ast }\bar{B}$ molecular state?
• Discovery potential of stable and near-threshold doubly heavy tetraquarks at the LHC
• Including heavy spin effects in the prediction of a $\bar{b}\bar{b}ud$ tetraquark with lattice QCD potentials
• Masses of doubly heavy tetraquarks $T_{Q{Q}^{\prime }}$ in a relativized quark model
• Implications of Heavy Quark-Diquark Symmetry for Excited Doubly Heavy Baryons and Tetraquarks
• Are there compact heavy four-quark bound states?
• Stable double-heavy tetraquarks: spectrum and structure
• Masses of Doubly Heavy Tetraquarks with Error Bars
• Doubly Heavy Tetraquarks in QCD Sum Rules
• Mass and decay constant of the newly observed exotic $X(5568)$ state
• Exotic open-flavor $bc\bar{q}\bar{q}$, $bc\bar{s}\bar{s}$ and $qc\bar{q}\bar{b}$, $sc\bar{s}\bar{b}$ tetraquark states
• Analysis of the scalar, axialvector, vector, tensor doubly charmed tetraquark states with QCD sum rules
• Lattice QCD study of doubly-charmed strange baryons
• The Hydrogen Bond of QCD in Doubly Heavy Baryons and Tetraquarks
• Diquark and light four-quark states
• Do the QCD sum rules support four-quark states?
• Mixings of 4-quark components in light non-singlet scalar mesons in QCD sum rules
• Doubly Heavy Tetraquark Resonant States
• Importance of meson-meson and of diquark-antidiquark creation operators for a $\bar{b}\bar{b}ud$ tetraquark
• Instanton interpolating current for $\sigma$--tetraquark
• Investigation of the light four-quark states with exotic $J^{PC}=0^{--}$
• Doubly hidden-charm/bottom $QQ\bar{Q}\bar{Q}$ tetraquark states

Cited by in corpus (4)

• Doubly heavy tetraquark states in the constituent quark model using diffusion Monte Carlo method
• Doubly heavy tetraquark states in a mass splitting model
• Doubly heavy tetraquarks: heavy quark bindings and chromomagnetically mixings
• Hunting for the prospective $T_{cc}$ family based on the diquark-antidiquark configuration