Meson spectrum in a relativistic harmonic model with instanton-induced interaction
Department of Physics, Mangalore University, Mangalagangotri, 574 199, Mangalore, India
2 Max-Planck-Institut für Kernphysik, Postfach 103980, D-69029, Heidelberg, Germany
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On the basis of the phenomenological relativistic harmonic model for quarks, we have obtained the ground-state masses of the light pseudo-scalar and vector mesons. The full Hamiltonian used in the investigation has Lorentz scalar + vector confinement potential, along with one-gluon-exchange potential (OGEP) and the instanton-induced quark-antiquark interaction. A good agreement is obtained with the experimental masses. The respective role of instanton-induced interaction and OGEP for the determination of the meson masses is discussed.
© Società Italiana di Fisica and Springer-Verlag, 2004