ABSTRACT
In this section we shall study the large β limit for the D = 2 principal chiral field described by the Lagrangian: () L = 1 2 e 0 2 Tr ( ∂ μ g - 1 ∂ μ g ) ( 1 / e 0 2 = β » 1 and g ∈ G ) https://s3-euw1-ap-pe-df-pch-content-public-p.s3.eu-west-1.amazonaws.com/9780203755082/368e82cb-c90f-4481-8690-b6aa5c7020fa/content/eq76.tif"/> As we discussed in Chapter 1, the infrared interaction of the massless particles described by (2.1) is logarithmically strong. It is our aim now to reveal the structure of this logarithmic interaction.
