出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：We study various aspects of the renormalization of the Resonance Chiral Theory at the one-loop
level using a spin-one resonance propagator as a concrete example. We calculate explicitly the
one-loop self-energy within the antisymmetric tensor field formalism, briefly discuss the general
structure of the corresponding propagator obtained by means of the Dyson re-summation and give
a classification of the propagating degrees of freedom. We find that additional pathological poles
(negative norm ghosts or tachyons) are unavoidably generated and various scenarios according to
their position are possible. We also briefly comment on the eventual dynamical generation of the
opposite parity resonances which are frozen at the tree level and discuss the role of appropriate
symmetry which could prevent such a scenario.
