Abstract
In this paper we deal with the linear O(N) σ-model in four dimensions in the broken phase. It is argued that the zero-momentum two-point function in a finite box obeys a soft-pion finite-size theorem which holds if the boundary conditions are periodic. The theorem's validity depends only on the structure of the would-be massless sector of the model.
Original language | English (US) |
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Pages (from-to) | 180-196 |
Number of pages | 17 |
Journal | Nuclear Physics, Section B |
Volume | 300 |
Issue number | C |
DOIs | |
State | Published - 1988 |
All Science Journal Classification (ASJC) codes
- Nuclear and High Energy Physics