Eta bound states in nuclei: a probe of flavour-singlet dynamics

Details Eta bound states in nuclei: a probe of flavour-singlet dynamics Eta bound states in nuclei: a probe of flavour-singlet dynamics

2005-07-02

arxiv.org/abs/hep-ph/0507024v2

Phys.Lett.B634:368-373,2006

Physics

High Energy Physics

High Energy Physics - Phenomenology

8 pages, version to appear in PLB

Scientific paper

10.1016/j.physletb.2006.01.071

We argue that eta bound states in nuclei are sensitive to the singlet component in the eta. The bigger the singlet component, the more attraction and the greater the binding. Thus, measurements of eta bound states will yield new information about axial U(1) dynamics and glue in mesons. Eta - etaprime mixing plays an important role in understanding the value of the eta-nucleon scattering length.

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