Lattice QCD static potentials of the meson-meson and tetraquark systems computed with both quenched and full QCD

Abstract

We revisit the static potential for the $QQ\bar{Q}\bar{Q}$ system using SU(3) lattice simulations, studying both the colour singlets groundstate and first excited state. We consider geometries where the two static quarks and the two anti-quarks are at the corners of rectangles of different sizes. We analyse the transition between a tetraquark system and a two meson system with a two by two correlator matrix. We compare the potentials computed with quenched QCD and with dynamical quarks. We also compare our simulations with the results of previous studies and analyze quantitatively fits of our results with anzatse inspired in the string flip-flop model and in its possible colour excitations.

24 pages, 17 figures, 14 tables

References in corpus (16)

• Multiquark Resonances
• Heavy-Quark QCD Exotica
• Observation of a resonance-like structure in the pi^+- psi' mass distribution in exclusive B-->K pi^+- psi' decays
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• First study of the gluon-quark-antiquark static potential in SU(3) Lattice QCD
• Tetraquark resonances with the triple flip-flop potential, decays in the cherry in a broken glass approximation
• First study of the three-gluon static potential in Lattice QCD
• Four-quark stability
• Microscopic calculation of the decay of Jaffe-Wilczek tetraquarks, and the Z(4433)
• Interactions of confining strings in SU(3) gluodynamics
• Heavy tetraquark confining potential in Coulomb gauge QCD

Cited by in corpus (12)

• Heavy-flavored tetraquark states with the $QQ\bar{Q}\bar{Q}$ configuration
• The Simple Spectrum of $c\bar{c}c\bar{c}$ States in the Dynamical Diquark Model
• Fully-heavy tetraquarks in strongly interacting medium
• The Dynamical Diquark Model: First Numerical Results
• Spectroscopy of Exotic Hadrons Formed from Dynamical Diquarks
• Tetraquarks in large-$N_c$ QCD
• Importance of meson-meson and of diquark-antidiquark creation operators for a $\bar{b}\bar{b}ud$ tetraquark
• Pair structure of heavy tetraquark systems
• The interplay between compact and molecular structures in tetraquarks
• Cluster reducibility of multiquark operators
• Would a Deeply Bound $b\bar{b}b\bar{b}$ Tetraquark Meson be Observed at the LHC?
• BPS strings and the stability of the asymptotic Casimir law in adjoint flavor-symmetric YMH models