标题： 通过可积靴带求和平面图 显示英文标题

标题： Summing Planar Diagrams by an Integrable Bootstrap

摘要： 对于具有质量的重整化场论，矩阵值场的相关函数通常未知。我们找到了具有SU(N) × SU(N) 对称性的(1+1)维sigma模型形式因子的大N极限。这些形式因子对N趋于无穷时的自由场近似Wightman函数进行了修正。该方法结合了S矩阵的1/N展开和Smirnov的形式因子公理。当N趋于无穷时，我们将重整化场展开为自由有质量的玻色子场。 显示英文摘要

摘要： Correlation functions of matrix-valued fields are not generally known for massive renormalized field theories. We find the large-N limit of form factors of the (1+1)-dimensional sigma model with SU(N) X SU(N) symmetry. These form factors give a correction to the free-field approximation for the N=infinity Wightman function. The method is a combination of the 1/N-expansion of the S-matrix and Smirnov's form-factor axioms. We expand the renormalized field in terms of a free massive Bosonic field as N goes to infinity.