On the Limits of Chiral Perturbation Theory
نویسنده
چکیده
We consider the relation between the breakdown scale of chiral perturbation theory, Λχ, for large values of N (flavor), and the scale associated with “new” physical thresholds. This question is addressed using both the linear σ model and an asymptotically-free gauge theory to describe the high energy dynamics. It is suggested that the massive physical threshold could be well above Λχ.
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تاریخ انتشار 2003