EPJ Web of Conferences
Volume 20, 2012Hadron Nuclear Physics 2011 (HNP2011) “Quarks in Hadrons, Nuclei, and Hadronic Matter”
|Number of page(s)||8|
|Published online||10 February 2012|
Hadron resonances with coexistence of different natures
1 Research Center for Nuclear Physics (RCNP), Osaka University, Ibaraki 567-0047, Japan
2 Department of Physics, Tokyo Institute of Technology, Meguro 152-8551, Japan
3 Yukawa Institute for Theoretical Physics, Kyoto University, Kyoto 606-8502, Japan
4 Department of Physics, Nara Women’s University, Nara 630-8506, Japan
5 Department of Physics, The University of Tokyo, Tokyo 113-0033, Japan
6 KEK Theory Center, Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization, 1-1, Oho, Ibaraki 305-0801, Japan
a e-mail: email@example.com
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 , exotic meson-nucleons as hadronic composites containing one anti-heavy quark , and the study of a1 as a typical example to show explicitly the mixing of the two different natures . 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.
© Owned by the authors, published by EDP Sciences, 2012
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