标题： 通过可积Bootstrap求和平面图 显示英文标题

标题： Summing Planar Diagrams by an Integrable Bootstrap

摘要： 矩阵值场的相关函数在广义的重整化场论中通常并不为人所知。 我们找到了具有SU(N) X SU(N)对称性的(1+1)维sigma模型的形因子的大-N极限。 这些形因子对N=无穷大的Wightman函数的自由场近似给出了修正。 该方法是S矩阵的1/N展开和Smirnov的形因子公理的结合。 当N趋于无穷大时，我们将重整化的场展开为一个自由的带质量玻色场。 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.