A Symmetric Approach to the Massive Nonlinear Sigma Model

Details A Symmetric Approach to the Massive Nonlinear Sigma Model A Symmetric Approach to the Massive Nonlinear Sigma Model

2010-08-16

arxiv.org/abs/1008.2779v1

Physics

High Energy Physics

High Energy Physics - Theory

20 pages

Scientific paper

In the present paper we extend to the massive case the procedure of divergences subtraction, previously introduced for the massless nonlinear sigma model (D=4). Perturbative expansion in the number of loops is successfully constructed. The resulting theory depends on the Spontaneous Symmetry Breaking parameter v, on the mass m and on the radiative correction parameter \Lambda. Fermions are not considered in the present work. SU(2) X SU(2) is the group used.

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