Chiral Lagrangian and skyrmion from quark and parity doublet determinants
- Authors
- Publication Date
- Identifiers
- DOI: 10.1007/BF01559742
- OAI: oai:inspirehep.net:338604
- Source
- INSPIRE-HEP
- External links
Abstract
We consider the effective action of the chiral quark model to leading order in the number of colors. A set of massive ghost-like Gervais-Lee fermion doublets is introduced which effectively simulate an asymptotically free behavior for the quarks at short distances. This suppresses the vacuum instability and leaves the Wess-Zumino sector unspoiled. At small momenta, we show that the action generated in this way compares well with experiment by performing a chiral expansion up to fourth order. It is found that this action supports stable soliton solutions with baryon number one. Masses, mass-splittings and the sigma-term are estimated in theSU(2) limit.
There are no comments yet on this publication. Be the first to share your thoughts.