RT Journal Article T1 Classical system of nonlinear Dirac andKlein-Gordon fields A1 Fernández-Rañada, Antonio AB The classical system of interacting Dirac and pseudoscalar fields is studied. It is found that the lowest energy kink describes with reasonable accuracy the main properties of the nucleons. PB Kyoto Univ. SN 0033-068X YR 1976 FD 1976-07 LK https://hdl.handle.net/20.500.14352/64913 UL https://hdl.handle.net/20.500.14352/64913 LA eng NO © 1976 Progress of Theoretical Physics. We are very much indebted to Professor M. Soler for many discussions and suggestions and to Professor B. Carreras for his kind interest and criticism. DS Docta Complutense RD 10 abr 2025