Heavy Mesons in Two Dimensions

Abstract

The large mass limit of QCD uncovers symmetries that are not present in the QCD lagrangian. These symmetries have been applied to physical (finite mass) systems, such as B and D mesons. We explore the validity of this approximation in the 't Hooft model (two-dimensional QCD in the large-N approximation). We find that the large mass approximation is good, even at the charm mass, for form factors, but it breaks down for the pseudoscalar decay constant.

4 pages, 3 figures incl

Cited by in corpus (16)

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• Explicit Quark-hadron Duality in Heavy-light Meson Weak Decays in the 't Hooft Model
• On a precise calculation of (f_{B_s}/f_B) / (f_{D_s}/f_D) and its implications on the interpretation of B - \bar B mixing
• Extending light-front holographic QCD using the 't Hooft Equation
• On Constraints for Heavy-Meson Form Factors
• Simply Modeling Meson HQET
• Analytical Heavy Quark Expansion in the 't Hooft Model
• Quark-Hadron Duality in the 't Hooft Model for Meson Weak Decays: Different Quark Diagram Topologies
• Two Photon Contribution to Polarization in $K^{+}\to {\pi }^{+}{\mu }^{+}{\mu }^{-}$
• Quark-hadron duality for heavy meson mixings in the 't Hooft model
• Exclusive diffractive J/psi and Psi(2S) production in dipole model using a holographic AdS/QCD light front wavefunction with longitudinal confinement
• Shape and soft functions of HQET and SCET in the 't Hooft Model
• Spherical Quantum Chromodynamics of Heavy Quark Systems
• Hadron spectroscopy using the light-front holographic Schrödinger equation and the 't Hooft equation