79 citations · 683 across the 67 of their papers we have counts for
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Proper-time evaluation of the effective action: unequal masses in the loop
A. A. Osipov
The Fock-Schwinger proper-time method is used to derive the effective action in the field theory with the chiral symmetry explicitly broken by unequal masses of h…
Proper-time method for unequal masses
A. A. Osipov
The result of removing of heavy non-equal mass particles from the theory can be described, at low energy, by the effective action, which is a series in inverse-square powers of the…
Ultraviolet and Infrared Divergences in Implicit Regularization: a Consistent Approach
H. G. Fargnoli, A. P. Baeta Scarpelli, L. C. T. Brito +4
Implicit Regularization is a 4-dimensional regularization initially conceived to treat ultraviolet divergences. It has been successfully tested in several instances in the literatu…
Explicit chiral symmetry breaking and the 1/N expansion in models with multi-fermion interactions
Alexander A. Osipov, Brigitte Hiller, Alex H. Blin
Explicit chiral symmetry breaking is a natural feature of many QCD inspired models with multi-quark interactions. To carry out the 1/N expansion of these theories, one integrates o…
Path Integral Bosonization of the 't Hooft Determinant: Quasiclassical Corrections
Alexander A. Osipov, Brigitte Hiller
The many-fermion Lagrangian which includes the 't Hooft six-quark flavor mixing interaction (N_f=3) and the U_L(3)\times U_R(3) chiral symmetric four-quark Nambu -- Jona-Lasinio (N…
Generalized Heat Kernel Coefficients for a New Asymptotic Expansion
Alexander A. Osipov, Brigitte Hiller
The method which allows for asymptotic expansion of the one-loop effective action W=ln det A is formulated. The positively defined elliptic operator A= U + M^2 depends on the exter…