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arXiv · 1201.0807

Study of $qqqc\bar{c}$ 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
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Abstract

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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S. G. Yuan, K. W. Wei, J. He, H. S. Xu, B. S. Zou. 2012-01-04. Study of $qqqc\bar{c}$ five quark system with three kinds of quark-quark hyperfine interaction. https://doi.org/10.1140/epja/i2012-12061-2

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