Study of $qqqc\bar{c}$ five quark system with three kinds of quark-quark hyperfine interaction

B. S. Zou; H. S. Xu; J. He; K. W. Wei; S. G. Yuan

Study of qqqcbar{c} five quark system with three kinds of quark-quark hyperfine interaction

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arxiv 1201.0807 v1 pith:3LINLOQD submitted 2012-01-04 nucl-th

Study of qqqcbar{c} five quark system with three kinds of quark-quark hyperfine interaction

S. G. Yuan , K. W. Wei , J. He , H. S. Xu , B. S. Zou This is my paper

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The low-lying energy spectra of five quark systems $uudc\bar{c}$ (I=1/2, S=0) and $udsc\bar{c}$ (I=0, S=-1) are investigated with three kinds of schematic interactions: the chromomagnetic interaction, the flavor-spin dependent interaction and the instanton-induced interaction. In all the three models, the lowest five quark state ($uudc\bar{c}$ or $udsc\bar{c}$) has an orbital angular momentum L=0 and the spin-parity $J^{P}=1/2^{-}$; the mass of the lowest $udsc\bar{c}$ state is heavier than the lowest $uudc\bar{c}$ state.

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