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Title: Holonomy anomalies

A new type of anomaly is discussed that afflicts certain non-linear sigma models with fermions. This anomaly is similar to the ordinary gauge and gravitational anomalies since it reflects a topological obstruction to the reparametrization invariance of the quantum effective action. Nonlinear sigma models are constructed based on homogeneous spaces G/H. Anomalies arising when the fermions are chiral are shown to be cancelled sometimes by Chern-Simons terms. Nonlinear sigma models are considered based on general Riemannian manifolds. 9 refs. (LEW)
Authors:
; ;
Publication Date:
OSTI Identifier:
5513432
Report Number(s):
SLAC-PUB-3698; CONF-8503141-2
ON: DE85014354
DOE Contract Number:
AC03-76SF00515
Resource Type:
Conference
Resource Relation:
Conference: Symposium on anomalies, geometry and topology, Argonne, IL, USA, 28 Mar 1985
Research Org:
Harvard Univ., Cambridge, MA (USA). Lyman Lab. of Physics; Stanford Linear Accelerator Center, CA (USA)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; SIGMA MODEL; NONLINEAR PROBLEMS; CHIRALITY; FERMIONS; LAGRANGIAN FUNCTION; FUNCTIONS; MATHEMATICAL MODELS; PARTICLE MODELS; PARTICLE PROPERTIES; 645400* - High Energy Physics- Field Theory