Remark on the potential function of the linear sigma model

نویسنده

  • Joseph Schechter
چکیده

It is shown that the potential functions for the ordinary linear sigma model can be divided into two topographically different types depending on whether the quantity R ≡ (mσ/mπ) is greater than or less than nine. Since the Wigner-Weyl mode (R = 1) and the Nambu-Goldstone mode (R = ∞) belong to different regions, we speculate that this classification may provide a generalization to the broken symmetry situation, which could be convenient for roughly characterizing different possible applications of the model. It is noted that a more complicated potential does not so much change this picture as add different new regions. Typeset using REVTEX

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تاریخ انتشار 1997