中文

$c\bar{c}$阈值附近的轻子型$D$和$D_s$衰变

高能物理 - 实验 2011-06-15 v1

摘要

我们展示了 CLEO 合作组关于ccˉc\bar{c}产生阈值附近DDDsD_s轻子衰变率的最新结果。从这些衰变率中,我们提取了衰变常数:fD=(222.6±16.73.4+2.8)f_D = (222.6\pm16.7^{+2.8}_{-3.4}) MeV,fDs=(274±10±5)f_{D_s} = (274\pm10\pm5) MeV,以及比值fDs/fD=1.23±0.11±0.03f_{D_s}/f_D = 1.23\pm0.11\pm0.03

关键词

引用

@article{arxiv.0711.2660,
  title  = {Leptonic D and D_s Decays near c-cbar Threshold},
  author = {Steven R. Blusk},
  journal= {arXiv preprint arXiv:0711.2660},
  year   = {2011}
}

备注

6 pages, 6 figures, To be published in the proceedings of CHARM07, Ithaca, NY, August 5-8, 2007, eConf C070805