Chiral Extrapolations and Exotic Meson Spectrum

Details Chiral Extrapolations and Exotic Meson Spectrum Chiral Extrapolations and Exotic Meson Spectrum

2001-06-07

arxiv.org/abs/hep-ph/0106080v1

Phys.Lett.B526:72-78,2002

Physics

High Energy Physics

High Energy Physics - Phenomenology

13 pagers, 2 figures

Scientific paper

10.1016/S0370-2693(01)01481-2

We examine the chiral corrections to exotic meson masses calculated in lattice QCD. In particular, we ask whether the non-linear chiral behavior at small quark masses, which has been found in other hadronic systems, could lead to large corrections to the predictions of exotic meson masses based on linear extrapolations to the chiral limit. We find that our present understanding of exotic meson decay dynamics suggests that open channels may not make a significant contribution to such non-linearities whereas the virtual, closed channels may be important.

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