4 papers
Light-light and heavy-light mesons spectra from nonperturbative QCD
A. V. Nefediev
Properties of light-light mesons are described by the effective Hamiltonian with spinless quarks derived from QCD. The spectrum is computed by the WKB method and shown to reproduce…
Quantum mechanics of confinement and chiral symmetry breaking in two-dimensional QCD
A. V. Nefediev
The system of light quark and heavy anti-quark source is studied in 1+1 QCD in the large limit. Making use of the modified Fock-Schwinger gauge allows to consider simultaneou…
Straight-line string in the einbein field formalism
Yu. S. Kalashnikova, A. V. Nefediev
The canonical description of the straight-line string is given in the einbein field formalism. The system is quantized and Regge spectrum is reproduced. The covariant analogue of t…
Relativistic quantum mechanics in the einbein field formalism
Yu. S. Kalashnikova, A. V. Nefediev
The system of two relativistic particles with einbein fields is quantized as a constrained system.A method of the introduction of the Newton--Wigner collective coordinate is discus…