N. Karagoz et Nk. Pak, DIRAC PROPAGATOR IN THE CHIRAL SOLITONIC BAG MODEL WITH MASSIVE QUARKS, Progress of theoretical physics, 90(2), 1993, pp. 369-377
We explicitly construct a confined bag propagator for massive Dirac fi
eld using the Multiple Reflection Expansion Method for the chiral soli
tonic bag model. The series is shown to be convergent for the imaginar
y frequencies, and the convergence sets in very rapidly for large valu
es of the frequencies.