English

Hadronic Charm Decays and D Mixing

High Energy Physics - Phenomenology 2007-05-23 v2 High Energy Physics - Experiment

Abstract

I discuss new results on absolute branching ratios of charm mesons into specific exclusive final states, Cabibbo suppressed decay rates, inclusive decays to ssˉs\bar{s} mesons, limits on D^0 anti-D^0 mixing, CP violation and T violation. Preliminary results from CLEO-c now dominate the world average absolute branching fractions. For the most important normalization modes involving D^0 and D^+, the averages are B(D^0 -> K^- pi^+ = (3.87 +/- 0.06)%, and B(D^+ -> K^- pi^+ pi^+)= (9.12 +/- 0.19)%. For the Ds^+ CLEO-c measures B(Ds+ -> K^- K^+ pi^+)=(4.54^{+0.44}_{-0.42} =/- 0.25)%. Using this rate, I derive an effective branching ratio B(eff)(Ds^+ -> phi pi^+)=(3.49 +/- 0.39)%, that is appropriate for use in extracting other branching fractions that have often been measured relative to this mode. This number is compared with other determinations.

Keywords

Cite

@article{arxiv.hep-ph/0605134,
  title  = {Hadronic Charm Decays and D Mixing},
  author = {Sheldon Stone},
  journal= {arXiv preprint arXiv:hep-ph/0605134},
  year   = {2007}
}

Comments

Inivted talk at "Flavor Physics and CP Violation Conference," Vancouver, 2006, 12 pages, 14 figures. To be published Electronic Conference Proceedings Archive http://www.slac.stanford.edu/econf/search.html

R2 v1 2026-07-22T14:08:35.417Z