Meson Spectroscopy with Instantons in Constituent Quark Models

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Quantum Chromodynamics (QCD) is the theory of strong interactions. Since the exact form of confinement of quarks from QCD is not known constituent quark modes were developed incorporating the basic features of the QCD. Mesons are the very fundamental particles in hadron physics. Hence, a deep understanding of the internal structure of the mesons is of crucial importance for explaining properties concerning more complex systems. In this work, non-relativistic and relativistic constituent quark models have been developed including instantons as a short range nonperturbative gluonic effect. The total energy or the mass of the meson is obtained by calculating the energy eigen values of the Hamiltonian in the harmonic-oscillator basis.

Dr. Bhayashri obtained her Ph.D. in Theoretical Particle Physics from Mangalore University, India, in the year 2008. Her field of interest is Particle Physics Phenomenology. Dr. K.B. Vijaya Kumar is Associate Professor of Physics, Mangalore University. He obtained his Ph.D.in Particle Physics from Physical Research Laboratory (PRL)- Gujarat University in 1992. His field of specialization is Particle Physics phenomenology.