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25 April 2024

» arxiv » 1110.1937

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Hadron resonances with coexistence of different natures
Atsushi Hosaka ; Tetsuo Hyodo ; Daisuke Jido ; Hideko Nagahiro ; Kanabu Nawa ; Shunsuke Ohkoda ; Sho Ozaki ; Yasuhiro Yamaguchi ; Shigehiro Yasui ;
Date:	10 Oct 2011
Abstract:	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 $ar D$ 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.
Source:	arXiv, 1110.1937
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