QCD sum rule analysis of excited $\Lambda_c$ mass parameter

Jong-Phil Lee; Chun Liu; H. S. Song

doi:10.1016/S0370-2693(00)00144-1

QCD sum rule analysis of excited $\Lambda_c$ mass parameter

高能物理 - 唯象学 2009-10-31 v1

作者: Jong-Phil Lee , Chun Liu , H. S. Song

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摘要

The mass parameter of orbitally excited $\Lambda_c$ baryons is calculated by using QCD sum rule in the framework of heavy quark effective theory. Two kinds of interpolating current for the excited heavy baryons are introduced. It is obtained that $\bar{\Lambda}=1.08^{+0.095}_{-0.104}$ GeV for the non-derivative current and $\bar{\Lambda}=1.06^{+0.090}_{-0.107}$ GeV for the current with derivative. These results are consistent with experimental data.

关键词

baryon physics quark masses qcd sum rules

引用

@article{arxiv.hep-ph/0002034,
  title  = {QCD sum rule analysis of excited $\Lambda_c$ mass parameter},
  author = {Jong-Phil Lee and Chun Liu and H. S. Song},
  journal= {arXiv preprint arXiv:hep-ph/0002034},
  year   = {2009}
}

备注

12 pages, 3 figures, to appear in PLB

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