Dynamical study of the light scalar mesons below 1 GeV in a flux-tube model

Abstract

The light scalar mesons below 1 GeV as tetraquark states are studied in the framework of the flux-tube model, the multi-body confinement instead of the additive two-body confinement is used. From the calculated results, we find that the light scalar mesons, $\sigma$, $\kappa$ could be well accommodated in the diquark-antidiquark tetraquark picture in the flux-tube model and they could be color confinement resonances. The mass of the first radial excited state of $[ud][\bar{u}\bar{d}]$ is 1019 MeV, which is close to the mass of $f_0(980)$. Whereas $a_0(980)$ can not be fitted in this interpretation.

arXiv comment11 pages, 1 figure

References in corpus (28)

• Diquarks and Exotic Spectroscopy
• Chiral Symmetry Amplitudes in the S-Wave Isoscalar and Isovector Channels and the σ, f_0(980), a_0(980) Scalar Mesons
• Chiral symmetry amplitudes in the s-wave isoscalar and isovector channels and the $\sigma ,f_0(980),a_0(980)$ scalar mesons
• Exotica
• Constituent quark model study of the meson spectra
• A new look at scalar mesons
• On the nature of light scalar mesons from their large $N_c$ behavior
• On the structure of the scalar mesons $f_0(975)$ and $a_0(980)$
• A Theory of Scalar Mesons
• Insight into the Scalar Mesons from a Lattice Calculation
• Detailed Analysis of the Three Quark Potential in SU(3) Lattice QCD
• Evidence for kappa Meson Production in J/psi -> bar{K}^*(892)^0K^+pi^- Process
• Lattice study of light scalar tetraquarks with I=0,2,1/2,3/2: are sigma and kappa tetraquarks?
• Relativistic Effects in the Scalar Meson Dynamics
• First Study for the Pentaquark Potential in SU(3) Lattice QCD
• Nature of the light scalar mesons
• f0(980) meson as a K bar K molecule in a phenomenological Lagrangian approach
• Dynamically Spontaneous Symmetry Breaking and Masses of Lightest Nonet Scalar Mesons as Composite Higgs Bosons
• Strong and radiative decays of the scalars f0(980) and a0(980) in a hadronic molecule approach
• Modified Breit-Wigner formula for mesonic resonances describing OZI decays of confined $q\bar{q}$ states and the light scalar mesons
• Observation of charged kappa in J/psi -> K*(892)-+Kspi+-, K*(892)-+ -> Kspi-+ at BESII
• About the Casimir scaling hypothesis
• On a three-body confinement force in hadron spectroscopy
• Light Scalar Mesons in the Improved Ladder QCD
• Quantum chromodynamics quark benzene
• P Wave Meson Spectrum in a Relativistic Model with Instanton Induced Interaction
• A chiral qbarqbarqq nonet?
• The Three-body Force and the Tetraquark Interpretation of Light Scalar Mesons

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• Studying $X(2100)$ hadronic decays and predicting its pion and kaon induced productions
• Role of the scalar $f_0(980)$ in the process $D_s^{+}\to {\pi }^{+}{\pi }^0{\pi }^0$
• Roles of the scalar $f_0(500)$ and $f_0(980)$ in the process $D^0\to {\pi }^0{\pi }^0{\bar{K}}^0$