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Effective action in a general chiral model: Next to leading order derivative expansion in the worldline method
KTH, School of Engineering Sciences (SCI), Theoretical Physics.
2008 (English)In: Nuclear Physics B, ISSN 0550-3213, E-ISSN 1873-1562, Vol. 793, no 3, 425-450 p.Article in journal (Refereed) Published
Abstract [en]

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.
Keyword [en]
effective action, chiral models, worldline path integral
Identifiers
URN: urn:nbn:se:kth:diva-33371DOI: 10.1016/j.nuclphysb.2007.10.005ISI: 000253113800003OAI: oai:DiVA.org:kth-33371DiVA: diva2:414750
Note
QC 20110504Available from: 2011-05-04 Created: 2011-05-04 Last updated: 2017-12-11Bibliographically approved

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