中文

对观测到的重子的一种新解释

高能物理 - 唯象学 2009-10-28 v2 高能物理 - 实验

摘要

我提出,对观测到的粲重子和底重子所赋予的常规量子数是不正确的,因为这些赋值意味着重自旋-味对称性和轻 SU(3)SU(3) 对称性被严重破坏。我提出对这些观测态的一种替代解释,在该解释中这些对称性得以保持。如果这些新赋值是正确的,那么存在一个新态,其质量约为 2380~MeV,衰变为 Λc+γ\Lambda_c+\gamma;另一个新态的质量约为 5760~MeV,衰变为 Λb+γ\Lambda_b+\gamma。尽管这些态尚未被观测到,但现有分析也并未将其排除。

关键词

引用

@article{arxiv.hep-ph/9603389,
  title  = {A New Interpretation of the Observed Heavy Baryons},
  author = {Adam F. Falk},
  journal= {arXiv preprint arXiv:hep-ph/9603389},
  year   = {2009}
}

备注

REVTeX, 7 pages. This is the final version to appear in Physical Review Letters. Two typos in Eq. (1) have been fixed and several points elsewhere have been clarified; also, there is now a brief discussion of the relationship of this proposal to the nonrelativistic constituent quark model