Effective action in a general chiral model: Next to leading order derivative expansion in the worldline method
2008 (English)In: Nuclear Physics B, ISSN 0550-3213, Vol. 793, no 3, 425-450 p.Article in journal (Refereed) Published
We present a formalism to determine the imaginary part of a general chiral model in the derivative expansion. Our formalism is based on the worldline path integral for the covariant current that can be given in an explicit chiral and gauge covariant form. The effective action is then obtained by integrating the covariant current, taking account of the anomaly.
Place, publisher, year, edition, pages
2008. Vol. 793, no 3, 425-450 p.
effective action, chiral models, worldline path integral
IdentifiersURN: urn:nbn:se:kth:diva-33371DOI: 10.1016/j.nuclphysb.2007.10.005ISI: 000253113800003OAI: oai:DiVA.org:kth-33371DiVA: diva2:414750
QC 201105042011-05-042011-05-042011-05-04Bibliographically approved