Hadron resonances with coexistence of different natures

Details Hadron resonances with coexistence of different natures Hadron resonances with coexistence of different natures

2011-10-10

arxiv.org/abs/1110.1937v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

Proceedings for Hadron Nuclear Physics (HNP) 2011, Pohang, Korea, February 21-24 (2011)

Scientific paper

We discuss coexistence/mixing of different natures of hadronic composite (molecule) and elementary (quark-intrinsic) ones in hadron resonances. The discussions here are based on our previous publications on the origin of hadron resonances \cite{Hyodo:2008xr}, exotic $\bar D$ meson-nucleons as hadronic composites containing one anti-heavy quark \cite{Yamaguchi:2011xb}, and the study of $a_1$ as a typical example to show explicitly the mixing of the two different natures \cite{Nagahiro:2011jn}. In all cases, interactions are derived from the chiral dynamics of the light flavor sector. These interactions generate in various cases hadronic composite/molecule states, serving varieties of structure beyond the conventional quark model.

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