New Resonances and Meson Spectroscopy at BaBar and Belle

@inproceedings{Poireau2007NewRA,
  title={New Resonances and Meson Spectroscopy at BaBar and Belle},
  author={Vincent Poireau},
  year={2007}
}
In 2003, two new resonances were discovered by the BaBar and CLEO experiments: the D∗ s0(2317) and Ds1(2460) mesons [3]. These two resonances are very narrow, and have masses well below what was predicted by the potential model. These states are very well known experimentally: masses are measured with an error below 2 MeV/c, 95% confidence level upper limits on widths are about 4 MeV ; J quantum numbers (0 and 1 for D∗ s0(2317) and Ds1(2460) respectively), decay modes and branching fractions… CONTINUE READING