English

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

Nuclear Theory 2015-06-03 v1

Abstract

The low-lying energy spectra of five quark systems uudccˉuudc\bar{c} (I=1/2, S=0) and udsccˉudsc\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 (uudccˉuudc\bar{c} or udsccˉudsc\bar{c}) has an orbital angular momentum L=0 and the spin-parity JP=1/2J^{P}=1/2^{-}; the mass of the lowest udsccˉudsc\bar{c} state is heavier than the lowest uudccˉuudc\bar{c} state.

Keywords

Cite

@article{arxiv.1201.0807,
  title  = {Study of $qqqc\bar{c}$ five quark system with three kinds of quark-quark hyperfine interaction},
  author = {S. G. Yuan and K. W. Wei and J. He and H. S. Xu and B. S. Zou},
  journal= {arXiv preprint arXiv:1201.0807},
  year   = {2015}
}