References for Nonlinear Sigma Model.

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arroy_0205
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Can anybody please suggest some references (preferably review articles or lecture notes etc, freely available online) for learning linear and nonlinear sigma models and their applications in particle physics?
 
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A way to start can be the book Gauge Theory of Elementary Particle Physics by Cheng and Li. It has a nice chapter about Chiral Symmetry which introduces the linear Sigma model, than there is a supplementary book to it (Problems and Solutions) which has a few things about both the linear and nonlinear Sigma model.