Limits to the Fixed Center Approximation to Faddeev equations: the case of the $φ(2170)$

Details Limits to the Fixed Center Approximation to Faddeev equations: the case of the $φ(2170)$ Limits to the Fixed Center Approximation to Faddeev equations: the case of the $φ(2170)$

2010-12-13

arxiv.org/abs/1012.2708v2

Phys.Rev.D83:116002,2011

Physics

High Energy Physics

High Energy Physics - Phenomenology

Scientific paper

10.1103/PhysRevD.83.116002

The Fixed Center Approximation to the Faddeev equations (FCA) has been used lately with success in the study of bound systems of three hadrons. It is also important to set the limits of the approach in those problems to prevent proliferation of inaccurate predictions. In this paper we study the case of the $\phi(2170)$, which has been described by means of Faddeev equations as a resonant state of $\phi$ and $K \bar{K}$, and show the problems derived from the use of the FCA in its study. At the same time we also expose the limitations of an alternative approach recently proposed.

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