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

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

2012-01-04

arxiv.org/abs/1201.0807v1

Physics

Nuclear Physics

Nuclear Theory

Scientific paper

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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