A note on large N scalar QCD_2

Abstract

We review the features of the bound state equation in large N scalar QCD in two dimensions, the 't Hooft model, and compute the discrete hadron mass spectrum in this theory. We make the Ansatz that the scalar fields of this model represent spin zero diquarks and we estimate the minimum allowed mass for the first radial excitation of the lowest diquark-antidiquark scalar meson. The discussion is extended to the case of spin one diquarks.

9 pages, 1 figure

References in corpus (18)

• Big Bang Nucleosynthesis (in "The Review of Particle Properties" 2004)
• Observation of a narrow charmonium-like state in exclusive B+ -> K+ pi+pi- J/psi decays
• Observation of a New Narrow Charmonium State in Exclusive B+-->K+ pi+pi- J/psi Decays
• Precision Measurement of Neutrino Oscillation Parameters with KamLAND
• Diquark-Antidiquarks with Hidden or Open Charm and the Nature of X(3872)
• Diquarks and Exotic Spectroscopy
• Exotica
• Observation of a resonance-like structure in the pi^+- psi' mass distribution in exclusive B-->K pi^+- psi' decays
• A new look at scalar mesons
• A Theory of Scalar Mesons
• Mechanism for a next-to-lowest lying scalar meson nonet
• Toy model for two chiral nonets
• Unitarized pseudoscalar meson scattering amplitudes in three flavor linear sigma models
• Higher Tetraquark Particles
• Indications of a Four-Quark Structure for the X(3872) and X(3876) Particles from Recent Belle and BABAR Data
• Explicit Quark-hadron Duality in Heavy-light Meson Weak Decays in the 't Hooft Model
• The Charged Z(4433): Towards a New Spectroscopy
• Alternative Large Nc Schemes and Chiral Dynamics

Cited by in corpus (7)

• The hidden-charm pentaquark and tetraquark states
• Exotic Hadrons with Hidden Charm and Strangeness
• Quasi-parton distribution functions: two-dimensional scalar and spinor QCD
• Hamiltonian, Path Integral and BRST Formulations of Large N Scalar $QC{D}_2$ on the Light-Front and Spontaneous Symmetry Breaking
• Quark-hadron duality for heavy meson mixings in the 't Hooft model
• Sigma meson in QCD sum rules using a two quark current with derivatives
• Meson scattering and tetraquarks in two-dimensional QCD