Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2003-08-18
J.Phys.A37:1403-1413,2004
Physics
High Energy Physics
High Energy Physics - Theory
15 pages
Scientific paper
10.1088/0305-4470/37/4/023
For the minimal O(N) sigma model, which is defined to be generated by the O(N) scalar auxiliary field alone, all n-point functions, till order 1/N included, can be expressed by elementary functions without logarithms. Consequently, the conformal composite fields of m auxiliary fields possess at the same order such dimensions, which are m times the dimension of the auxiliary field plus the order of differentiation.
Leonhardt Thorsten
Ruehl Werner
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