One-pion exchange in the X(3872) revisited [PDF]
Yu. S. Kalashnikova, A. V. NefedievWe re-examine one-pion exchange as a possible binding mechanism in the X(3872) charmonium-like state and argue it to be not sufficiently binding for this purpose. We conclude therefore that other short-range dynamics are responsible for the X formation.View original: http://arxiv.org/abs/1212.2004
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