Spectrum of the Dirac operator in the linear sigma model with quarks

Spitzenberg T., Schwenzer K. O. , Pirner H.

PHYSICAL REVIEW D, cilt.65, 2002 (SCI İndekslerine Giren Dergi) identifier identifier


We derive the spectrum of the Dirac operator for the linear sigma model with quarks in the large N-c approximation using renormalization group flow equations. For small eigenvalues, the Banks-Casher relation and the vanishing linear term are recovered. We calculate the coefficient of the next to leading term and investigate the spectrum beyond the low energy regime.